Сари, Я, and A. Azmukhanova. “The Competition of Major Powers for the Caspian Energy Resources”. Bulletin of L.N. Gumilyov Eurasian National University. Historical Sciences. Philosophy. Religious Studies 131, no. 2 (June 30, 2020): 56–67. Accessed November 21, 2024. https://bulhistphaa.enu.kz/index.php/main/article/view/204.