OGBULIE, T. E.; AKUJIOBI, T. C.; KALU, I. G. Assessment of physico-chemical qualities of commercial bottled water Sold in Imo state, Nigeria. International Journal of Natural and Applied Sciences, [S. l.], v. 3, n. 1, p. 131–138, 2008. DOI: 10.4314/ijonas.v3i1.36158. Disponível em: https://www.ajol.info/index.php/ijonas/article/view/36158. Acesso em: 8 oct. 2026.