Neffati, Mohamed, Rafik Jbir, and Naceur Benzina. “Renewable and Non-Renewable Energy Consumption and Total Factor Productivity Growth: The Case of G20 Countries”. Energy Economics Letters 10, no. 1 (May 24, 2023): 78–89. Accessed February 4, 2026. https://www.archive.aessweb.com/index.php/5049/article/view/4806.