Chima, C. A. ., A. S. . Ibeogu, and J. C. . Nwusulor. “Federalism and Challenges of Nation-Building in Nigeria: A Critical Review”. Kashere Journal of Politics and International Relations, vol. 3, no. 4, Apr. 2026, pp. 310-25, https://journals.fukashere.edu.ng/index.php/kjpir/article/view/1193.