Yessymkhanova, Zeinegul, Gulmira Azretbergenova, and Ainura Saparova. “Testing the Environmental Kuznets Curve Hypothesis in BRIC Countries”. International Journal of Energy Economics and Policy 14, no. 1 (January 15, 2024): 371–376. Accessed May 13, 2024. https://econjournals.com/index.php/ijeep/article/view/15111.