Timur Rakhimov, Murat Mukhamedzhanov, И.К. Рахметов. "DRINKING GROUNDWATER OF WESTERN KAZAKHSTAN AND THE PROBLEMS OF THEIR POLLUTION." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th SGEM International Multidisciplinary Scientific GeoConference Proceedings 2020, Science and Technologies in Geology, Exploration And Mining (2020): 473-480. https://doi.org/10.5593/sgem2020/1.1/s02.059