“The Distribution and Concentration of Total Coliform, Fecal Coliform, Escherichia Coli and Enterococci in Water and Sediment in the Estero Salado (Sections B, D, E and G)”. Revista Científica Ciencias Naturales y Ambientales 7, no. 1 (December 3, 2013): 12. Accessed December 5, 2025. https://revistas.ug.edu.ec/index.php/cna/article/view/1697.