“A Test of Pollution Haven Hypothesis (PHH) in the Environmental Kuznets Curve (EKC) Framework in Selected ASEAN Countries”, jgd, vol. 13, no. 2, pp. 111–134, Jan. 2023, Accessed: Nov. 10, 2025. [Online]. Available: https://www.educationmalaysia.co.uk/index.php/jgd/article/view/18259