Romanova, Sofya, and Roza Ryskaliyeva. “Hydrochemical Regime and Water Quality of Rivers and Reservoirs of Basins of Shu, Esyl, Tobol, Sirdariya Rivers for Long-Term Cycle”. Chemical Bulletin of Kazakh National University 68, no. 4 (December 4, 2012): 182-188. Accessed November 24, 2024. https://chemistry.kz/bulletin/index.php/kaznu/article/view/301.