Smagulova, G.M., Kеnzhegali Zh.M., and B.T. Tuleuova. “Some Problems of Ecological Security in Central Kazakhstan (on the Example of Water Resources)”. Bulletin of the Karaganda university History. Philosophy series 98, no. 2 (June 30, 2020): 149–156. Accessed September 27, 2026. https://ejh.buketov.edu.kz/history-philosophy-vestnik/article/view/470.