| Colonialism and amalgamation of Southern and Northern Protectorates: Analysis of emerging issues in Nigeria OO Princewill, ON Lucas, IM Daniel Journal of Political Science and Leadership Research 6 (1), 49-64, 2020 | 18 | 2020 |
| The ecology of recruitment and selection of personnel and the quest for efficiency in the Delta State civil service OP Okereka Global Journal of Political Science and Administration 3 (5), 9-20, 2015 | 17 | 2015 |
| The national economic and development strategy (NEEDS): Its implications for human resources development and management in Nigeria OP Okereka Journal of Resources Development and Management 12 (1), 32-35, 2015 | 16 | 2015 |
| Vital civic registration system as a tool for development planning in Nigeria: An examination of the major challenges OP Okereka Journal of Culture, Society and Development 11 (6), 36-42, 2015 | 16 | 2015 |
| Issues and challenges of public administration education and training in Nigeria OP OKEREKA The Indonesian Journal of Social Studies 5 (2), 21-39, 2022 | 14 | 2022 |
| Digital media and data collection in social and management sciences research in Nigeria OP Okereka, AE Orhero, UC Okolie Ianna Journal of Interdisciplinary Studies 6 (1), 76-89, 2024 | 13 | 2024 |
| Nigeria-British relations: Implications for Nigeria in the post-Brexit era VE Efebeh, PO Okereka PalArch's Journal of Archaeology of Egypt/Egyptology 17 (7), 8811-8822, 2020 | 13 | 2020 |
| Bureaucratic features and job performance in Nigeria: A study of Delta State civil service SU Erude, W Igere, OP Okereka International Journal of Social Sciences and Management Research 9 (5), 87-99, 2023 | 11 | 2023 |
| Corruption and threat of state failure in Nigeria AE ORHERO, PO OKEREKA, HE OGBE EBSU Journal of Social Sciences and Humanities 11 (1), 2021 | 11 | 2021 |
| Understanding leadership styles and improved staff performance in the nigerian legislature: A perspective of the delta state house of assembly OP Okereka International Journal of Management 6 (12), 604-618, 2016 | 10 | 2016 |
| Understanding the thrust of the group theory and its applicability to contemporary party politics in Nigeria OP Okereka Public Policy and Administration Research 5 (5), 99-105, 2015 | 8 | 2015 |
| The Role of the Informal Sector in Unemployment Reduction in Nigeria SU ERUDE, FO ONAVWIE, OP OKEREKA EDITORIAL BOARD, 95, 2023 | 7 | 2023 |
| Evolution of constitutional government in Nigeria: Its implementation and national cohesion OP Okereka Global Journal of Political Science and Administration 3 (5), 1-8, 2015 | 6 | 2015 |
| The politics of oil and the Niger Delta regional development master plan: Its workability and the option of political goodwill PO Okumagba, OP Okereica AFRREV IJAH: An International Journal of Arts and Humanities 1 (1), 277-287, 2012 | 6 | 2012 |
| Role stressor and work adjustment of university lecturers in Delta State AE Orhero, OP Okereka, UC Okolie Ianna Journal of Interdisciplinary Studies 5 (1), 124-135, 2023 | 5 | 2023 |
| Community Policing and Internal Security in Delta and Edo States of Nigeria GI Oyibokure, OP Okereka, A Mukoro Logika: Jurnal Penelitian Universitas Kuningan 14 (02), 164-196, 2023 | 5 | 2023 |
| Inter-departmental relations and effective service delivery in the local government system: A perspective from Nigeria OP Okereka Public Policy and Administration Research 5 (1), 1-5, 2015 | 5 | 2015 |
| Fundamentals of Research Methodology and Methods for Management and Social Sciences: An Introductory Approach Hysoworld Nig OP Okereka Ent. & iPress247 Nig. Ent., Effurun, Delta State, Nigeria, 2023 | 4 | 2023 |
| ON-THE-JOB TRAINING AND EMPLOYEE PERFORMANCE IN NIGERIAN ELECTRICITY DISTRIBUTION COMPANIES. VU ORIMUO, A Mukoro, OP OKEREKA Journal of Public Administration, Finance & Law, 2023 | 4 | 2023 |
| A march to the future: teaching of public administration and public administrators’ perception on public administration education and training in Delta State University, Abraka … OP Okereka, UC Okolie Iraqi: Proceedings of the Second International Scientific Conference-Al …, 2023 | 4 | 2023 |
