Ussipbekova YZ, Rakhym АB, Seilkhanova GА, Zhagiparova АD, Kenessova АК, Osmanzhan GО. Investigation of the adsorption of copper and zinc ions by sorbents based on plant waste – cake and husk of sunflower seeds. EJE [Internet]. 2021 Jun. 16 [cited 2024 Jul. 22];67(2):22-30. Available from: https://bulletin-ecology.kaznu.kz/index.php/1-eco/article/view/1151