Pratama, Adhy Satya, M. Pudjihardjo, Asfi Manzilati, and Devanto Shasta Pratomo. 2021. “Testing the Existence of Environmental Kuznets Curve (EKC) Hypothesis in ASEAN 5”. Technium Social Sciences Journal 22 (1). Constanta, Romania:362-75. https://www.techniumscience.com.techniumscience.pluscommunication.eu/index.php/socialsciences/article/view/4183.