Kankam, Dankwa, and Ishmael Ackah. “The Optimal Petroleum Fiscal Regime for Ghana: An Analysis of Available Alternatives”. International Journal of Energy Economics and Policy 4, no. 3 (June 8, 2014): 400–410. Accessed March 29, 2024. https://www.econjournals.com/index.php/ijeep/article/view/817.