Biosortion of Cr(VI) from Aqueous Solutions Using Chemically Modified Okra Powder. Journal of Basic & Applied Sciences, [S. l.], v. 10, p. 73–79, 2021. DOI: 10.6000/1927-5129.2014.10.11. Disponível em: https://www.setpublisher.com/index.php/jbas/article/view/2201. Acesso em: 19 jul. 2026.