Mahmood, Haider, and Tarek Tawfik Yousef Alkhateeb. “Trade and Environment Nexus in Saudi Arabia: An Environmental Kuznets Curve Hypothesis”. International Journal of Energy Economics and Policy 7, no. 5 (November 1, 2017): 291–295. Accessed November 10, 2024. https://econjournals.org.tr/index.php/ijeep/article/view/5333.