Gummi, Umar Muhammad, et al. “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, vol. 11, no. 1, Dec. 2020, pp. 52-64, https://econjournals.com./index.php/ijeep/article/view/10299.