Effects of the removal of pigment on the anti-oxidant property of methanolic extract of Hibiscus Sabdarifa Calyx. Communication In Physical Sciences, [S. l.], v. 13, n. 10, p. 1591–1606, 2026. DOI: 10.4314/. Disponível em: https://journalcps.com/index.php/volumes/article/view/930. Acesso em: 21 oct. 2026.