| The Effects of Rural‐Urban Migration on Rural Communities of Southeastern Nigeria CK Ajaero, PC Onokala International Journal of Population Research 2013 (1), 610193, 2013 | 223 | 2013 |
| A framework for agricultural adaptation to climate change in Southern Nigeria N Ozor, MC Madukwe, AA Enete, EC Amaechina, P Onokala, EC Eboh, ... International Journal of Agriculture Sciences 4 (5), 243-251, 2012 | 118 | 2012 |
| Barriers to climate change adaptation among farming households of Southern Nigeria N Ozor, MC Madukwe, AA Enete, EC Amaechina, P Onokala Journal of Agricultural Extension 14 (1), 2010 | 88 | 2010 |
| Problems and challenges facing the Nigerian transportation system which affect their contribution to the economic development of the country in the 21st century PC Onokala, CJ Olajide Transportation Research Procedia 48, 2945-2962, 2020 | 63 | 2020 |
| Contemporary analysis of variability in road traffic accidents in Lagos State, Nigeria AO Atubi, PC Onokala African geographical review 28 (1), 11-41, 2009 | 44 | 2009 |
| Transportation development in Nigeria: The journey so far and the way forward PC Onokala The 97th Inaugural Lecture. University of Nigeria, Nsukka, 2015 | 17 | 2015 |
| Gender equity in students enrolment in the universities in Nigeria PC Onokala, CU Onwurah | 17 | 2001 |
| Urbanization and urban transportation problems in Nigeria PC Onokala Issues in Urbanization and Urban Administration in Nigeria Jamoe Enterprises …, 2001 | 14 | 2001 |
| The Effect of Landuse on Road Traffic Accident in Benin-City, Nigeria PC Onokala Journal of Transport Studies 1 (1), 34-44, 1995 | 14 | 1995 |
| Women in academic positions in the universities in Nigeria PC Onokala, FO Onah | 13 | 1998 |
| The socio-economic effects of oil spillage on agriculture in the Niger-Delta AO Atubi, PC Onokala J. Environ. Stud 2, 50-56, 2006 | 12 | 2006 |
| Spatial appraisal of socioeconomic impacts of Rural out-migration in the Niger Delta region CK Ajaero, PC Onokala Proceedings of the TTI and CPED Workshop on Confronting the Challenges of …, 2011 | 9 | 2011 |
| Contribution of Road Transportation to Environmental Degradation in Nigerian Urban Centres: A Critical Analysis PC Onokala Annual Conference on Public Transportation at the Lagos Sheraton Hotel …, 2008 | 9 | 2008 |
| The Road Network Characteristics on Traffic Flow in South Western Nigeria: A Case of Lagos Mainland AO Atubi, PC Onokala Journal of environmental Design and Management in the Tropics 1 (1), 39-51, 2004 | 9 | 2004 |
| The Accessibility of Centres to the Road Networks: The Case of Lagos Island, Nigeria AO Atubi, PC Onokala Journal of Ecology and Environmental Dynamics 2, 140-151, 2004 | 8 | 2004 |
| Transport systems in Nigeria PC Onokala Lead Paper presented at the International Colloquium on Thirty Years of …, 2012 | 7 | 2012 |
| Road Transportation and the Socio-Economic Development of the Niger-Delta: A case study of Warri Metropolis AO Atubi, PC Onokala Journal of Social and Management Sciences Review 1 (1), 102-113, 2003 | 7 | 2003 |
| Transportation Development in Nigeria: The journey so far and the way forward. 97th Inaugural lecture PC Onokala Nsukka: University of Nigeria. p1-112, 2015 | 5 | 2015 |
| Urban Transportation and Road Traffic Accidents in an Emergent Society: Matters Arising PC Onokala, AO Atubi Journal of Nigerian Sociological Review 2 (1), 190-202, 2007 | 5 | 2007 |
| Environmental problems of rural transport development in Nigeria PC Onokala, PO Phil-Eze Geographical Perspectives on Environmental Problems and Management in, 2001 | 5 | 2001 |
