Nwosu, Okwudili Chukwuma, and Emmanuel Ugwuerua. 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). https://internationaljournalcorner.com/index.php/theijhss/article/view/140742.