IFEANYI, V.; OBIEKEZIE, S.; UDEBUANI, A.; ABARA, P. Quality evaluation of sachet water sold in port Harcourt, Nigeria. International Journal of Natural and Applied Sciences, [S. l.], v. 2, n. 4, p. 332–335, 2006. DOI: 10.4314/ijonas.v2i4.36114. Disponível em: https://www.ajol.info/index.php/ijonas/article/view/36114. Acesso em: 15 oct. 2026.