Gummi, Umar Muhammad, Yang Rong, Utiya Bello, Abdulhamid Sillah Umar, and Asiya Mu’azu. 2020. “On the Analysis of Food and Oil Markets in Nigeria: What Prices Tell Us from Asymmetric and Partial Structural Change Modeling?”. International Journal of Energy Economics and Policy 11 (1):52-64. https://www.econjournals.com/index.php/ijeep/article/view/10299.