Current Position:

The Deputy Vice-Chancellor, Kingsley Ozumba (KO) Mbadiwe University (KOMU),  Ideato , Imo State, Nigeria.

Pioneer Proprietor / CEO, OWERRI CBT HI-TECH, Owerri, Imo State - a JAMB approved CBT Centre and a centre of excellence for digital learning, 2015 till date.

Summary of Academic Profile:

Professor Aloysius Chijioke Onyeka who hails from Okporo in Orlu LGA of Imo State, Nigeria attended his primary education at Okporo Town School and Ihitte-Akatta Primary School, Awka-Akatta, and his secondary education at Bishop Shanahan College, Orlu before proceeding to Imo State University, Etiti for his first degree. Thereafter, he attended the University of Ibadan for his Masters and Doctoral degree programs.  Professor Onyeka, an astute scholar and University administrator has shown capacity and recorded monumental achievements over the years, in the areas of Statistical Analysis of Research Data, with over 80 successful PhD Thesis analyses, Productive Works in Statistical Computing, Advances in Information and Communication Technology (ICT), contributions to Sampling Theory and Survey Methodology and Consultancy/Human Capital Development.

Research Interests:

1. Statistical Computing

2. Sampling Theory and Survey Methodology

Educational Qualifications:

PhD (Statistics), University of Ibadan, Ibadan, Nigeria (1994)

M.Sc. (Statistics), University of Ibadan, Ibadan, Nigeria (1988)

B.Sc. (Statistics), Imo State University, Etiti, Nigeria (1985)

SSCE, Bishop Shanahan College (BSC), Orlu (1980)

FSLC, Ihitte-Akatta Primary School, Akwa-Akatta (1975)

Academic Distinctions:

1. Best Graduating M.Sc. student, Department of Statistics, University of Ibadan, Ibadan, Nigeria (1988)

2. Pioneer Best Graduating B.Sc. student, Faculty of Science, Imo State University, Etiti, Nigeria (1985)

3. Pioneer Best Graduating B.Sc. student in Statistics, School of Biological and Physical   Sciences, Imo State University, Etiti, Nigeria (1985)

Membership of Professional Body:

International Statistical Institute (ISI)

International Association of Survey Statisticians (IASS)

International Biometric Society (IBS)

Royal Statistical Society (RSS)

Nigerian Statistical Association (NSA)

Professional Statisticians Society of Nigeria (PSSN)

Some Contributions to Knowledge:

My modest contributions and achievements over the years extended over such areas as Statistical Analysis of Research Data, Productive Works in Statistical Computing, Sampling Theory \& Survey Methodology, Consultancy and Human Capital Development, including the following:

Successfully carried out statistical analysis of over eighty (80) successful PhD research works. These contributions cut across research works from different fields and faculties of study like the Sciences, Engineering, Agriculture, Social Sciences, Environmental Studies, Medical  Sciences and Education.

Developed a user-friendly software, entitled “Academic Transcript Software (ATS)”, for the purpose of seamless digital preparation and preservation of academic transcripts of students of the Federal University of Technology, Owerri, Nigeria. The ATS is currently in use at the Records and Statistics Unit of the Registrar's Office for the preparation and preservation of academic transcripts of FUTO students.

Developed the “Results Spreadsheet Software (RSS)” as part of my contribution to improving the preparation of semester results of FUTO students at the Departmental level. While the ATS deals with preparation of transcripts according to the format used by the Records and Statistics Unit of the Registrar's Office, the RSS deals with the preparation of semester results according to the spreadsheet format used at the Departmental level.

Developed the "FUTO Official Grade Report (OGR) Template,'' which is currently about the most widely-used digital productive work for results processing in FUTO. The FUTO-OGR template is designed to assist lecturers to seamlessly record, in digital format, students' scores and grades on various courses taught in the university.

Developed the "Course Re-validation Template (CRT)'' designed to assist a student in carrying out his or her personal recording and preservation of Senate-approved results.

My works and contributions in Sampling Theory and Survey Methodology included, but not limited to such areas as successive sampling or sampling on several occasions, stratification and post-stratified sampling, non-response and missing data in surveys, variable transformation and use of auxiliary variables in general.  The works have been properly written and published in both local and international journals for wide readership and global relevance.

Deputy Vice-Chancellor, Kingsley Ozumba (KO) Mbadiwe University (KOMU),  Ideato, Imo State, Nigeria, 2021 till date

Pioneer Rector, Bishop Shanahan Polytechnic, Orlu, Imo State, 2019.

Head, Department of Computer Science, Federal University of Technology, Owerri

Pioneer Head, Department of Statistics, Federal University of Technology, Owerri, 2007-2010.

Pioneered the use of Computer-based testing (CBT) in writing JAMB examinations at the  Federal University of Technology, Owerri, 2015.

Pioneered the use of Computer-based testing (CBT) in conducting Post-UTME screening   exercise at the Federal University of Technology, Owerri, 2015.

Pioneered the teaching and learning of Statistical Computing courses, involving practical use of statistical software applications by students of Statistics Department, Federal University of Technology, Owerri (FUTO), 2010.

Pioneered the use of computer systems in writing examinations on computer-based courses in the Department of Statistics, FUTO, 2010.

Pioneered the use of computer systems in writing examinations on computer-based courses in the Department of Statistics, Abia State University, Uturu (ABSU), 2019.

Chief Consultant and Resource Person to Imo State Government on Computer Literacy training program for staff of Imo State Ministry of Health, 2004

Chief Consultant and Resource Person to Imo State Government for Computer training and supply of computers to staff of Imo State Local Empowerment and Environmental Management Project (LEEMP), 2004.

Chief Consultant and Resource Person to Imo State Government for training of staff of Imo State Statistical Agency on the use of Statistical Analysis System (SAS) software, organized by the Imo State Public Sector Governance Reform and Development Project (World Bank Assisted), 2014.

Resource Person to Nigerian Institute of Food Science and Technology (NIFST) to discuss the place of Computer Applications, Statistical Packages (SAS, SPSS, Excel, etc.), Biometrics, Simulation and Modelling in Writing Grant Winning Proposals, 2013.

Resource Person at the 11th Annual General Meeting (AGM) of the Conference of Nigerian College of Optometrists to discuss Statistical Techniques for Analysis of Researches in Medical and Health Sciences (Risks and Survival Analysis), 2018.

Pioneer Proprietor / CEO, OWERRI CBT HI-TECH, Owerri, Imo State - a JAMB approved CBT Centre and a centre of excellence for digital learning, 2015 till date.

Community Service:

National Coordinator, Say Absolute No To Exam-Malpractice (SANTEM-NG), 2014 till date. A Non-Governmental Organization (NGO) for sharing ideas and programs on how to curb the menace of examination malpractice and generally foster and promote academic excellence at all levels of education in Nigeria and beyond.

Chairman, Education Committee, Isiala-Okporo Autonomous Community, Okporo, Orlu LGA, Imo State, 2008--2011. Sponsored two teachers of Okporo Town School, Okporo, Orlu for a six-month Computer appreciation and literacy program.

Chairman, Site 3C Neighbourhood Association, Site and Services Federal Housing Estate, Umuguma, Owerri, 2010--2013. Facilitated electrification and procurement of 300KVA transformer for the Housing Estate through self-help and probity in management of both human and financial resources. Also rehabilitated roads within the Estate and engaged the services of both the Nigerian Police and private security agencies to curb the menace of armed robbery within the Estate and its environs.

Resource Person (Mathematics), Macmillan Progressive Mathematics for Primary and Secondary Schools, in Macmillan Annual Workshop in English Language, Mathematics and Sciences for primary and secondary schools in South Eastern Nigeria, 2009--2013.

Onyeka, A. C. (2000): Success formula for secondary school students. K. K. Integrated  Systems Ltd., Owerri, Nigeria. A resource handbook for achieving academic excellence in secondary schools in Nigeria.

Onyeka, A. C. (1997): Success formula for students of tertiary institutions. Andibem Integrated Systems Ltd., Owerri, Nigeria. A resource handbook for achieving academic excellence in tertiary institutions of learning in Nigeria.

Positions held:

Deputy Vice-Chancellor, Kingsley Ozumba (KO) Mbadiwe University (KOMU),  Ideato, Imo State, Nigeria, 2021 till date

Pioneer Rector, Bishop Shanahan Polytechnic, Orlu, Imo State, 2019.

Head, Department of Computer Science, Federal University of Technology, Owerri, 2020--2021.

Director, Information and Communication Technology (ICT) Centre, Federal University of Technology, Owerri, 2014 – 2016.

Director, University Computer Centre (UCC), Federal University of Technology, Owerri, 2011 – 2014.

Deputy Director, University Computer Centre (UCC), Federal University of Technology, Owerri, 2011.

Professor, Department of Statistics, Federal University of Technology, Owerri, 2015 till date.

Sabbatical/Visiting Professor, Department of Statistics, Faculty of Physical Sciences, Abia State University, Uturu, 2018/2019 session.

Associate Professor, Department of Statistics, Federal University of Technology, Owerri, 2012 – 2015.

Head, Department of Statistics, Federal University of Technology, Owerri, 2007 – 2010.

External Examiner, Department of Statistics, Imo State University, Owerri, 2013 – 2017.

Examiner, Department of Statistics, Abia State University, Uturu, 2008 – 2012.

Sabbatical/Visiting Lecturer, Department of Mathematics, Industrial Mathematics and Statistics, Imo State University, Owerri, Nigeria, 2004 – 2005.

Member, International Statistical Institute (ISI), 2007 till date.

Member, International Association of Survey Statisticians (IASS), 2007 till date.

Member, International Biometric Society (IBS), 2003 till date.

Member, Royal Statistical Society (RSS), 2018 till date

Member, Nigerian Statistical Association, 1997 till date.

Member, Professional Statisticians Society of Nigeria (PSSN), 2018 till date

Senate Member, Federal University of Technology, Owerri, 2007 till date.

Member, Board of Studies, School of Science, Federal University of Technology, Owerri, 1996 till date.

Member, Board of Studies, Department of Statistics, Federal University of Technology, Owerri, 2007 till date.

Member, Board of Studies, Department of Mathematics and Computer Science, Federal University of Technology, Owerri, 1996 – 2007.

Chief Executive Officer, Owerri CBT Hi-Tech, Owerri, Nigeria, 2015 till date.

Principal Consultant (Statistical Analysis and Surveys), K. K. Integrated Systems Ltd., Owerri, Nigeria, 1998 till date.

Principal Consultant (Internet and Computer Accessories), Netcom Computers Limited, Owerri, Nigeria, 2004-2008.

Part-time Lecturer, Department of Mathematics, Statistics and Computer Science, University of Port Harcourt, Nigeria, 1997 – 1998.

Senior Lecturer, Department of Statistics, Federal University of Technology, Owerri, Nigeria, 2003 – 2012.

Lecturer I, Department of Mathematics and Computer Science, Federal University of Technology, Owerri, Nigeria, 1996 – 2003.

Lecturer II, School of Physical Sciences (Statistics Unit), Abia State University, Uturu, Nigeria, 1994 – 1996.

Assistant Lecturer, School of Physical Sciences (Statistics Unit), Abia State University, Uturu, Nigeria, 1991 – 1994.

Teaching Assistant, Department of Statistics, University of Ibadan, Nigeria, 1989 – 1990.

Graduate Assistant, School of Physical Sciences (Statistics Unit), Abia State University, Uturu, Nigeria, 1986 – 1987.

Statistician, Economic and Statistics Division, Cocoa Research Institute of Nigeria (CRIN), Ibadan, Nigeria. NYSC, 1985 – 1986.

Publications and Productive Works:

Okafor Ikechukwu Boniface, Onyeka Aloysius Chijioke, Ogbonna Chukwudi Justin, Izunobi Chinyeaka Hostensia (2022). Effect of correlated measurement errors on estimation of population mean with modified ratio estimator. Biometrics & Biostatistics International Journal, Volume 11 Issue 2, 52-56

Okafor Ikechukwu Boniface, Onyeka Aloysius Chijioke, Ogbonna C. J., Izunobi Chinyeaka Hostensia and Kiwu Lawrence Chizoba (2022) The Influence of Measurement Errors on Generalized Estimator of Population Mean. Asian Journal of Probability and Statistics 16(4): 77-92

Izunobi Chinyeaka Hostensia, Onyeka Aloysius Chijioke, Iwueze Iheanyi Sylvester and Ogbonna Chukwudi Justin (2021). Estimation of Population Mean in Poststratified Sampling Scheme in the Presence of Measurement Errors. Journal of Research in Applied Mathematics, Volume 7 (9), pp 49-55

Izunobi Chinyeaka Hostensia, Onyeka Aloysius Chijioke, Iwueze Iheanyi Sylvester and Ogbonna Chukwudi Justin (2021). Estimation of Population Mean in Poststratified Sampling Scheme in the Presence of Nonresponse. Journal of Research in Applied Mathematics, Volume 7 (9), pp 56-64

Ikenna Caesar Nwandu, Aloysius C. Onyeka, Juliet N. Odii, Francisca O. Nwokoma and Theodora U. Onwuama (2021). Development of a smart detective device for maintenance of social distancing. International Journal of Trend in Research and Development, Vol.7(5), 2394--9333.

Nwaigwe, C.C., Onyeka, A.C. and Nwanneako, S.N. (2020). Comparison of Logit and Probit Models in the Analysis of Severity of Diabetes. EC Diabetes and Metabolic Research Vol.4(6), 1--11.

Izunobi, C.H and Onyeka, A.C (2019) Logarithmic ratio and product-type estimators of population mean in simple random sampling. International Journal of Advanced Statistics and Probability, Vol.7 (2), 47--55.

Izunobi, C.H and Onyeka, A.C (2019) Estimation of population ratio in simple random sampling using variable transformation in the presence of nonresponse. Far East Journal of Theoretical Statistics, Vol.57 (2), 103--114. http://dx.doi.org/10.17654/TS057020103.

Onyeka, A.C, Ogbumuo, D.T, and Izunobi, C.H (2019) Estimation of Population Mean in Stratified Random Sampling When Using Auxiliary Information in the Presence of Non-Response. Far East Journal of Theoretical Statistics, Vol.55 (2), 151-167. http://dx.doi.org/10.17654/TS055020151.

Nlebedim, V.U. and Onyeka, A.C. (2018). A Crash Course on LaTeX and R Software. Paper presented at Workshop on Computational Skills and Professional Writing held at Owerri Cbt Hitech, Owerri, Imo State, Nigeria, May 28-30, 2018.

Onyeka, A.C. (2018) Statistical Techniques for Analysis of Researches in Medical and Health Sciences (Risks and Survival Analysis). Paper presented at the 11th Annual General Meeting (AGM) and Conference of Nigerian College of Optometrists held at Top View Hotel, Asaba, Delta State, Nigeria, April 26-28, 2018.

Onyeka, A.C., Izunobi, C.H. and Iwueze, I.S. (2015) Estimation of Population Ratio in Post-Stratified Sampling Using Variable Transformation. Open Journal of Statistics, 5, 1-9. http://dx.doi.org/10.4236/ojs.2015.51001.

Onyeka, A.C., Izunobi, C.H. and Iwueze, I.S. (2015) Separate-Type Estimators for Estimating Population Ratio in Post-Stratified Sampling Using Variable Transformation. Open Journal of Statistics, 5, 27-34. http://dx.doi.org/10.4236/ojs.2015.51004.

Onyeka, A., Nlebedim, V. and Izunobi, C. (2014) A Class of Estimators for Population Ratio in Simple Random Sampling Using Variable Transformation. Open Journal of Statistics, 4, 284-291. https://www.scirp.org/journal/PaperInformation.aspxPaperID=47086\#.U6tdprGZFws.

Onyeka, A.C., Nlebedim, V.U., and Izunobi, C.H., (2013): Exponential Estimators of Population Mean in Post-Stratified Sampling using Known Value of Some Population Parameters. Global Journal of Science Frontier Research, GJSFR-F, Volume 13 Issue 9 Version 1.0, pp 1-11. https://globaljournals.org/GJSFR\_Volume13/1-Exponential-Estimators-of-Population-Mean.pdf.

Onyeka, A.C. (2013): A Class of Product-Type Exponential Estimators of The Population Mean in Simple Random Sampling Scheme. Statistics in Transition-new series, Vol.14, No.2, pp 189-200. http://stat.gov.pl/download/gfx/portalinformacyjny/en/defaultstronaopisowa/3432/1/1/as\_sit\_14\_2\_2013.pdf.

Onyeka, A.C., Nlebedim, V.U., and Izunobi, C.H., (2013): Estimation of Population Ratio in Simple Random Sampling using Variable Transformation Global Journal of Science Frontier Research, GJSFR-F, Volume 13 Issue 4 Version 1.0, pp 57-65. https://globaljournals.org/ GJSFR\_Volume13/4-Estimation-of-Population-Ratio-in-Simple.pdf.

Onyeka, A. C. (2013): Dual to ratio estimators of population mean in post-stratified sampling using known value of some population parameters. Global Journal of Science Frontier Research, GJSFR (F), Vol.13, Issue 2, Ver. 1, pp 13-23. https://globaljournals.org/GJSFR\_ Volume13/2-Dual-to-ratio-Estimators-of-Population-Mean.pdf.

Onyeka, A. C. (2012): Estimation of population mean in poststratified sampling using known value of some population parameter(s). Statistics in Transition-new series, Vol.13, No.1, 65-78. http://www.stat.gov.pl/cps/rde/xbcr/pts/SIT\_13\_1\_(2).pdf.

Onyeka, A. C (2011): A family of combined ratio-type estimators of the population mean in stratified random sampling. Pioneer Journal of Theoretical and Applied Statistics, Vol.2, No.2, 87-98. http://www.pspchv.com/content\_1\_PJTAS\_issuce\_2.html.

Onyeka, A. C. (2011): Chain ratio-type estimators in stratified random sampling. Pioneer Journal of Theoretical and Applied Stats, Vol.2, No.2, 99-111. http://www.pspchv.com/ content\_1\_PJTAS\_issuce\_2.html.

Onyeka, E.U., Mbonu, A.R., Onyeka, A.C. (2010): Improving consumer safety and satisfaction at fast food outlets in Owerri metropolis, Nigeria. Nigerian Food Journal, Vol.28, No.2, 66-71. http://www.ajol.info/index.php/nifoj/article/view/62635.

Onyeka, A. C. (2009): Empirical comparison of some sampling strategies for population mean in poststratified sampling over two occasions. Journal of Mathematical Sciences. Vol.20, No.1, 11-19. https://zbmath.org/?q=ci:1143.62303.

Onyeka, A. C. and Ogbonna, C. J. (2007): Separate univariate estimators of the population mean in poststratified sampling over two occasions. Journal of Mathematical Sciences. Vol.18, No.2, 107-114. https://zbmath.org/?q=an:05343602.

Onyeka, A. C. and Iwu, H. C. (2007): Improving the quality of Agricultural data in the presence of missing responses. Journal of Mathematical Sciences. Vol.18, No.2, 115-121. https://zbmath.org/?q=an:05343603.

Onyeka, A. C. (2006): A class of estimators for population ratio in poststratified sampling over two occasions. Journal of Mathematical Sciences. Vol.17, No.2, 103-112. https://zbmath.org/?q=an:1209.62008.

Onyeka, A. C. (2003): A class-cum-class estimators for population ratio in poststratified sampling over two occasions. Global Journal of Mathematical Sciences. Vol.2, No.1, 65-72, http://ajol.info/index.php/gjmas/article/view/21333.

Onyeka, A. C. (2003): Ratio estimation in poststratified sampling over two occasions. Global Journal of Pure and Applied Sciences. Vol.9, No.3, 407-414, http://ajol.info/ index.php/gjpas/article/view/15949.

Onyeka, A. C. (2003): On ratio estimation in poststratified sampling over two occasions. Global Journal of Mathematical Sciences. Vol.2, No.1, 43-50, http://www.ajol.info/ index.php/gjmas/article/view/21330.

Onyeka, A. C. (2002): Sampling strategies for population mean in poststratified sampling over two occasions. The Physical Scientist, Vol. 1, No.1, 97-108.

Onyeka, A. C. (2001): Univariate estimators of the population mean in poststratified sampling over two occasions. Journal of the Nig. Stat. Asso., Vol. 14, 26-33.

Onyeka, A.C. (2014): Development of Course Revalidation Template (CRT) for Federal University of Technology, Owerri. A patentable productive work in the Department of Statistics, Federal University of Technology, Owerri, Nigeria.

Onyeka, A.C. (2012): Development of FUTO-OGR (Official Grade Report) templates (version-1 and version-2) in Ms-Excel. A productive work in the Department of Statistics, Federal University of Technology, Owerri, Nigeria.

Onyeka, A.C. (2010): Development of Academic Transcript Software for Federal University of Technology, Owerri. A productive work in the Department of Statistics, Federal University of Technology, Owerri, Nigeria.

Onyeka, A.C. (2009): Development of Results Spreadsheet Software (RSS) for Tertiary Institutions of Learning in Nigeria, with collated course results as input data. A productive work in the Department of Statistics, Federal University of Technology, Owerri, Nigeria.

Inyama, S. C. and Onyeka, A. C. (2007): A statistical analysis of the UME and POST-UME at the Federal University of Technology, Owerri (2006/2007 academic session). A technical report submitted to the Office of the Vice Chancellor, Federal University of Technology, Owerri, Nigeria.

Inyama, S. C. and Onyeka, A. C. (2006): A statistical analysis of the UME and POST-UME at the Federal University of Technology, Owerri (2005/2006 academic session). A technical report submitted to the Office of the Vice Chancellor, Federal University of Technology, Owerri, Nigeria.

Onyeka, A.C. (2015): Use of SAS for Statistical Analysis of Academic Data. A paper presented at the Workshop on Academic Planning in University Development, organized by Centre for Human Resource Development (CHRD), Federal University of Technology, Owerri (FUTO), June 9-11, 2015 at CHRD Auditorium, FUTO, Owerri.

Onyeka, A.C. (2015): Effective Use of FUTO Eduportal by HOD’s and Class Advisers. A training manual presented at the Training Workshop for HOD’s and Class Advisers on the Use of FUTO Eduportal, organized by Information and Communications Technology (ICT) Centre, Office of the Vice-Chancellor, Federal University of Technology, Owerri (FUTO), March 19-20, 2015 at FUTO ICT Centre, Owerri.

Onyeka, A.C. and Ajaraogu, J.C. (2014): Use of SAS for Statistical Analysis. A training manual presented at the Training Workshop for staff of Imo State Statistical Agency, organized by Imo State Public Sector Governance Reform and Development Project (World Bank Assisted), September 29 – October 10, 2014 at Villa Toscana Hotels, Enugu.

Onyeka, A.C. and Ajaraogu, J.C. (2014): Use of Microsoft Excel for Statistical Analysis. A training manual presented at the Training Workshop for staff of Imo State Statistical Agency, organized by Imo State Public Sector Governance Reform and Development Project (World Bank Assisted), September 29 – October 10, 2014 at Villa Toscana Hotels, Enugu.

Onyeka, A.C. (2014): Guidelines for Use of FUTO-ATS and RSS Templates. A training manual presented at the Training Workshop for FUTO Registry Staff on Digital Compilation of Students’ Results, organized by the Office of the Registrar, Federal University of Technology, Owerri, August 19-21, 2014 at FUTO ICT Centre, Owerri.

Onyeka, A.C. (2013): The place of Computer Applications, Statistical Packages (SAS, SPSS, Excel, etc.), Biometrics, Simulation and Modelling in Writing Grant Winning Proposals. A paper presented at the Workshop on Writing Grant Winning Proposals organized by Nigerian Institute of Food Science and Technology (NIFST), August 21-23, 2013 at Alvan Ikoku Federal College of Education, Owerri.

Onyeka, A.C. (2012): Guidelines for Use of FUTO-OGR (Official Grade Report) Template in Ms-Excel. A training manual presented at the Training Workshop for FUTO Academic Staff on the Use of FUTO-OGR Template, organized by the University Computer Centre (UCC), Office of the Vice-Chancellor, Federal University of Technology, Owerri (FUTO), May 21-25, 2012 at FUTO UCC, Owerri.

Onyeka, A. C. (2010): “Academic Transcripts Software (ATS) and Results Spreadsheet Software (RSS)” being an exhibition and demonstration at NURESDEF, 2010: 4th Nigerian Universities Research and Development Fair (NURESDEF), held 22 – 26 November, 2010 at University of Nigeria, Nsukka.

Onyeka, A. C. (2010): “Development of Results Spreadsheet Software (RSS) for tertiary institutions in Nigeria” being a paper presented at AICTTRA, 2010, 5th International Conference on Applications of ICT to Teaching, Learning and Research Administration (AICTTRA), held 27 – 29 September, 2010 at University of Jos.

Onyeka E.U, Mbonu, A.R and Onyeka A.C. (2009): “Improving consumer safety and satisfaction at fast food outlets in Owerri Urban Area, Imo State, Nigeria” being a poster presentation at ICUH, 2009, 8th International Conference on Urban Health (ICUH), held 18-23 October, 2009 at International Conference Centre, Nairobi Kenya.

Onyeka, A. C. (2000): Probability Distributions. K. K. Integrated Systems Ltd., Owerri, Nigeria (205 pages).