Oladejo, O. A. (2020). Personality Deficit in Political Leadership: The Travesty of Good Governance in Nigeria. In I. O. Albert, U. Pate, & F. Onuoha (Eds.), Leadership and Nigeria's Sustainable Development Goals. John Archers Publishers.
Oladejo, O. A. (2019). Emotional Intelligence in Alternative Dispute Resolution: Beyond the Cacophony of Legal-Mindedness. In E. Bogoroh and N.D. Danjibo (Eds), Readings in Peace and Conflict in Honour of Isaac Olawale Albert. Ibadan: SPSP. ISBN: 978-978-975-945-3.
Oladejo, O. A. (2023). Amotekun Corps Operations in South-Western Nigeria: The Prospects beyond the Controversies. LASU Journal of Humanities, 6(1).
Border Security: A Culture in Crisis in South Western Nigeria?
https://www.rsisinternational.org/journals/ijriss/Digital-Library/volume-6-issue-12/342-353.pdf
SEEKING SECURITY AND STABILITY: An analysis of security response to farmer-herder conflict in the middle belt region of Nigeria.
https://documents.sfcg.org/wp-content/uploads/2018/11/Seeking-Security-and-Stability_Nigeria_-Search-for-Common-Ground.pdf
Abiodun, T. F., & Oladejo, O. A. (2021). The State and Challenges of Human Trafficking in Nigeria: Implications for National Peace and Security. Journal of Public Administration and Governance, 11(2).
Akanji, T. A., Oladejo, O. A., Eselebor, A. I., & Awuapila, N. M. (2021). Border Security Issues and Farmer-Herder Conflict in Western Sahel and the Lake Chad Basin. International Journal of Migration and Border Studies, 31(3), 89-122.
Oladejo, O. A. (2021). Nature, Contributory Causes and Security Implications of Trans-Border Crimes in Seme and Idi-Iroko Border Areas in Nigeria. African Institute for Peace Series, 4(3), 67-88.
Abiodun, T. F., Oladejo, O. A., Oludotun, A., & Chukwunyere, N. (2019). Security Intelligence Cooperation and the Coordinated War on Terror among Nigeria’s Security Agencies: Panacea to Stable National Security. Global Scientific Journal, 7(7), 541-556.
Akanji, T. A., Oladejo, O. A., & Alayande, A. F. (2018). Prison Rehabilitation Programmes, Recidivism and Internal Security: A Case Study of Agodi and Abologo Correctional Facilities, Oyo State, Nigeria. Ibadan Journal of Peace and Development, 8, 123-151.
Oladejo, O. A. (2018). Evolution, Implications and Challenges of Community Guard Operations in Ibadan Metropolis, Oyo State, Nigeria. Ibadan Journal of Peace and Development, 8, 97-122.
Kwaja, C; Adelehin B.; Adewumi, A.; Oluyemi-Kusa, D.; Oladejo O. A.; Akpan, I.; Awuapila, N. M.; Vande, P. A. & Ireogbu, S. (2018). Seeking Security and Stability: A n Analysis of Security Responses to Farmer-Herder Conflict in the Middle Belt Region of Nigeria. Search for Common Ground. https://www.sfcg.org/wp-content/uploads/2018/11/Seeking-Security-andStability_Nigeria_-Search-for-Common-Ground.pdf
Akanji, T.A., Oladejo, O. A., & Mbaezue, C. E. (2017). Impact of Cultural Integration in the Promotion of Cross-Border Business Enterprises between Nigeria and Benin Republic. UNILAG Journal of Politics, 9(2), 56-75.
Oladejo, O. A. (2014). Effect of Akinboye Practical Creativity at Work and Metaphoric Thinking Techniques in Fostering Entrepreneurial Self-Efficacy among Would-be Polytechnic Graduates in Osun State. The Counsellor, 33(2), 175-188.