Paredes, M., T. Castillo, R. Viteri, G. Fuentes, and E. Bodero. “Microplastics in the Drinking Water of the Riobamba City, Ecuador”. Scientific Review Engineering and Environmental Studies (SREES), vol. 28, no. 4, Dec. 2019, pp. 653-6, doi:10.22630/PNIKS.2019.28.4.59.