Arboleda-Baena, C. M., Arismendi-González, L. M., Sepúlveda-Sánchez, M., Rodríguez-López, M., & Betancur-Urán, J. (2016). Verification of colilert methodology for determining and quantifying total coliforms and escherichia coli in a natural water matrix. Revista Politécnica, 12(22), 105–112. Retrieved from https://revistas.elpoli.edu.co/index.php/pol/article/view/882