Pauta-Calle, G., G. Vázquez, A. Abril, C. Torres, M. Loja-Sari, and A. Palta-Vera. “Bacteriological Indicators of Fecal Contamination in the Rivers of Cuenca, Ecuador”. Maskana, vol. 11, no. 2, Dec. 2020, pp. 46-57, doi:10.18537/mskn.11.02.05.