DR.DIPA DEY. Adsorption of methyl red on local kaolin from spiked aqueous solution. International Journal of Pharmaceutics and Drug Analysis, [S. l.], v. 2, n. 9, p. 683-694, 2014. Disponível em: https://ijpda.org/index.php/journal/article/view/111. Acesso em: 1 sep. 2026.