Setyawan, Dhani, and Irwanda Wisnu Wardhana. “Energy Efficiency Development in Indonesia: An Empirical Analysis of Energy Intensity Inequality”. International Journal of Energy Economics and Policy 10, no. 4 (May 16, 2020): 68–77. Accessed January 10, 2025. https://mail.econjournals.org.tr/index.php/ijeep/article/view/8808.