Hassan, Sallahuddin, Ismail Aliyu Danmaraya, and Muhammad Rabiu Danlami. “Energy Consumption and Manufacturing Performance in Sub-Saharan Africa: Does Income Group Matters?”. International Journal of Energy Economics and Policy 8, no. 1 (January 24, 2018): 175–180. Accessed March 29, 2024. https://www.econjournals.com/index.php/ijeep/article/view/5699.