Umukoro, Dr. Nathaniel. “Homegrown Solution to African Problem: Harnessing Innovation for Petroleum Refining in Nigeria”. Strategic Planning for Energy and the Environment 37, no. 4 (January 18, 2023): 58–73. Accessed April 29, 2026. https://journals.riverpublishers.com/index.php/SPEE/article/view/19533.