Nwosu, O. C., & Ugwuerua, E. (2014). Rotational Presidency and Ethnic Sentiments in Nigeria: An Analysis of President Obasanjo and Yar’Adua’s Regimes, 1999- 2010. The International Journal of Humanities & Social Studies, 2(11). Retrieved from https://internationaljournalcorner.com/index.php/theijhss/article/view/140742