Suharno, Suharno, and Nurul Anwar. “The Energy Demand Elasticity in Relation to Gross Domestic Product in Indonesia: Sectoral Approach”. International Journal of Energy Economics and Policy 13, no. 4 (July 9, 2023): 634–640. Accessed May 13, 2024. https://www.econjournals.com/index.php/ijeep/article/view/13385.