Removal of Cr(VI) from aqueous solution by using modified eggshells. Comprehensive Journal of Science, [S. l.], v. 10, n. ملحق 39, p. 1300–1307, 2026. DOI: 10.65405/21z5sq39. Disponível em: https://cjos.histr.edu.ly/index.php/journal/article/view/1942. Acesso em: 31 may. 2026.