Romanova, S. M. and Kazangapova, N. B. (2013) “Quality of waters lakes Kazakhstan in contemporaneous period (for example of lake Kopa)”, International Journal of Biology and Chemistry, 6(2), pp. 65–70. Available at: https://ijbch.kaznu.kz/index.php/kaznu/article/view/102 (Accessed: 28 April 2024).