OLU, S. C.; DIM, P. E.; OKAFOR, J. O. REMOVAL OF CU (II) FROM DYE EFFLUENT USING NATURAL AND PHOSPHATE-MODIFIED NIGERIAN KAOLINITE CLAY. International Journal of Research -GRANTHAALAYAH, [S. l.], v. 7, n. 8, p. 402–414, 2019. DOI: 10.29121/granthaalayah.v7.i8.2019.690. Disponível em: https://www.granthaalayahpublication.org/journals/granthaalayah/article/view/IJRG19_A08_2623. Acesso em: 9 dec. 2022.