М.А. Bolysbek, Т.К. Kalelova, and Sergazin Ye. “Theoretical Aspects of Water Problem Research by Western Scientists”. Bulletin of the L.N. Gumilyov Eurasian National University. Political Science. Regional Studies. Oriental Studies. Turkology Series. 145, no. 4 (December 25, 2023): 112–118. Accessed October 3, 2025. https://bulpolit.enu.kz/index.php/main/article/view/161.