Shaari, M. S., N. E. Hussain, H. Abdullah, and S. Kamil. “Relationship Among Foreign Direct Investment, Economic Growth and CO2 Emission: A Panel Data Analysis”. International Journal of Energy Economics and Policy, vol. 4, no. 4, Sept. 2014, pp. 706-15, https://econjournals.com/index.php/ijeep/article/view/887.