SORPTION OF Co2+, Cu2+, Zn2+ and Mn2+ METAL IONS FROM AQUEOUS SOLUTIONS ON ANIONIC SURFACTANT-MODIFIED BENTONITE. Proceedings of the YSU B: Chemical and Biological Sciences, [S. l.], v. 53, n. 2 (249), p. 81–85, 2019. DOI: 10.46991/PYSUB.2019.53.2.081. Disponível em: https://journals.ysu.am/index.php/proceedings-chem-biol/article/view/vol53_no2_2019_pp081-085. Acesso em: 21 jan. 2026.