Nguyen, Thuan, Bac Hai Dang, Thi Diem Nga Tran, and Thi Oanh Hoa Su. 2020. “The Role of Renewable Energy Consumption and FDI in Testing the Existing of Environmental Kuznets Curve in Vietnam”. International Journal of Energy Economics and Policy 11 (1):293-301. https://mail.econjournals.com/index.php/ijeep/article/view/10367.