Aeknarajindawat, N., B. Suteerachai, and P. Suksod. “The Impact of Natural Resources, Renewable Energy, Economic Growth on Carbon Dioxide Emission in Malaysia”. International Journal of Energy Economics and Policy, vol. 10, no. 3, Mar. 2020, pp. 211-8, https://www.econjournals.com/index.php/ijeep/article/view/9180.