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. Cienc. Salud Virtual [Internet]. 2010 Dec. 30 [cited 2026 Jun. 14];2(1):21-30. Available from: https://revistas.uninunez.edu.co/cienciaysalud/article/view/61