Ikram, Benomar, and Ababou Mariame. “Green Growth or Economic Gain? Assessing Environmental Efficiency Using Data Envelopment Analysis: Case of Africa”. International Journal of Energy Economics and Policy 14, no. 4 (July 5, 2024): 426–433. Accessed February 7, 2025. https://econjournals.org.tr/index.php/ijeep/article/view/15973.