А, Рахым А.Б., Сейлханова Г.А., Чавдари. Dichromate and permanganate-anions adsorption by Shankanai deposite organo-zeolite. Eurasian Journal of Ecology, [S.l.], v. 57, n. 4, p. 58-69, feb. 2019. ISSN 2617-7358. Available at: <http://bulletin-ecology.kaznu.kz/index.php/1-eco/article/view/952>. Date accessed: 19 feb. 2019.