G. ESENOVA, “KAZAKHSTAN’S FUEL AND ENERGY COMPLEX: EFORMS, PROBLEMS,AND PROSPECTS”, CAC, vol. 9, no. 5, pp. 105–120, Oct. 2008, Accessed: Jan. 11, 2025. [Online]. Available: http://13.200.237.241/CAC/index.php/cac/article/view/1216