Isolation of Caffeine from Carbonated Beverages. Journal of Tropical Pharmacy and Chemistry , [S. l.], v. 5, n. 1, p. 33–38, 2020. DOI: 10.30872/j.trop.pharm.chem.v5i1.110. Disponível em: https://jtpc.ff.unmul.ac.id/index.php/jtpc/article/view/110. Acesso em: 19 apr. 2025.