Suryawan, I. Gusti Bagus, and Ismail Aris. 2020. “Strengthening Environmental Law Policy and Its Influence on Environmental Sustainability Performance: Empirical Studies of Green Constitution in Adopting Countries”. International Journal of Energy Economics and Policy 10 (2):132-38. https://www.econjournals.com/index.php/ijeep/article/view/8719.