Babuga, Umar Tijjani, and Niaz Ahmad Mohd Naseem. “Asymmetric Effect of Oil Price Change on Inflation: Evidence from Sub Saharan Africa Countries”. International Journal of Energy Economics and Policy, vol. 11, no. 1, Dec. 2020, pp. 448-5, https://mail.econjournals.com/index.php/ijeep/article/view/10764.