Yespergenova , Lyazzat, Aliya Dosmanbetova, Yengilik Baisheva, Dinmukhamed Zhakipbekov, Myrzabike Zhumabayeva, and Alimshan Faizulayev. “The Factors That Drives the Cost Management Efficiency of Oil and Gas Companies in Emerging Markets: The Case of Eurasian Economic Union”. International Journal of Energy Economics and Policy 13, no. 1 (January 22, 2023): 328–334. Accessed May 25, 2024. https://www.econjournals.com/index.php/ijeep/article/view/13711.