Quintero-Jaramillo, Javier Andrés, et al. “Use of Thermal Water As a Natural Coagulant for Domestic Wastewater Sustainable Treatment”. Revista Facultad De Ingeniería, vol. 26, no. 44, Jan. 2017, pp. 35-45, doi:10.19053/01211129.v26.n44.2017.5770.