Validation of the Total Coliform and E. coli counting technique by the membrane filtration method in the quality control laboratory of Aguas de Cartagena SA ESP. Ciencia y Salud Virtual, [S. l.], v. 2, n. 1, p. 21–30, 2010. DOI: 10.22519/21455333.61. Disponível em: https://revistas.uninunez.edu.co/cienciaysalud/article/view/61. Acesso em: 14 jun. 2026.