Preparation and Characterization of African Star Apple Seed Shell (Chrysophyllum Africanum) For The Removal of Acid Red 9. Communication In Physical Sciences, [S. l.], v. 8, n. 1, p. 23–32, 2022. Disponível em: https://journalcps.com/index.php/volumes/article/view/439. Acesso em: 12 aug. 2026.