tazitdinova, rumiya1985, и Райхан Бейсенова. «ECOLOGICAL ASSESSMENT OF THE QUALITY OF FRESH WATER SOURCES OF RURAL AREAS OF PAVLODAR REGION». Academic Scientific Journal of Chemistry, no. 2 (июнь 15, 2022): 53–62. просмотрено декабрь 5, 2025. https://journals.nauka-nanrk.kz/chemistry-technology/article/view/2948.