Srimarut, Thammarak, and Witthaya Mekhum. “Impact of Custom Duties, Energy Import and Government Health Spending on Greenhouse Gas Emission in Thailand”. International Journal of Energy Economics and Policy 11, no. 1 (December 1, 2020): 584–590. Accessed May 6, 2024. https://econjournals.com/index.php/ijeep/article/view/10722.