Hoang, Truong Huy, Duong Trung Kien, and Nguyen Dat Minh. “Development of Energy Efficiency Action Plan at Provincial Level of Vietnam”. International Journal of Energy Economics and Policy 11, no. 6 (November 3, 2021): 60–67. Accessed April 24, 2024. https://econjournals.com/index.php/ijeep/article/view/11624.