EKA PUTRI, Suriati; SIDE, Sumiati; ILYAS, Nita Magfirah; PRATIWI, Diana Eka; RAHMAN, Abd. The Effect of Inorganic Acid Activation on the Metal Oxide Content of Natural Montmorillonite from Gowa Regency. Venn: Journal of Sustainable Innovation on Education, Mathematics and Natural Sciences, [S. l.], v. 5, n. 4, p. 641–648, 2026. DOI: 10.53696/venn.v5i4.477. Disponível em: https://journal.web.id/journals/venn/article/view/477. Acesso em: 7 oct. 2026.