Romanova, S., E. Tursunov, J. Dostay, and N. Kazangapova. “Hydrochemistry River Ile and Its Tributaries”. Chemical Bulletin of Kazakh National University 64, no. 4 (December 1, 2011): 183-187. Accessed November 24, 2024. https://chemistry.kz/bulletin/index.php/kaznu/article/view/531.