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Okoi, O. (2019). Peacebuilding and Transformational Change in Nigeria's Oil Region. Conflict Resolution Quarterly, 19 (1), 1-16. https://onlinelibrary.wiley.com/doi/full/10.1002/crq.21270

Okoi, O. (2019). The Paradox of Nigeria's Oil Dependency. Africa Portal, January 21, 2019. https://www.africaportal.org/features/paradox-nigerias-oil-dependency/

Okoi, O. (2016). Why Nations Fight: The Causes of The Nigeria–Cameroon Bakassi Peninsula Conflict. African security, 9 (1), 42-65. https://www.tandfonline.com/doi/abs/10.1080/19392206.2016.1132904

Okoi, O. (2016). Limits of International Law: Settlement of the Nigeria-Cameroon Territorial Conflict. International Journal on World Peace, 33 (2), 77-102