Andueza Leal, Felix Daniel, Santiago Chaucala, Raul Vinueza, Sandra Nohemi Escobar Arrieta, Gerardo Medina Ramirez, and Judith Del Carmen Araque Rangel. 2020. “Microbial Quality of the Thermal Waters of the Spa ‘El Tingo’. Pichincha. Ecuador”. Ars Pharmaceutica (Internet) 61 (1):15-25. https://revistaseug.ugr.es/index.php/ars/article/view/8378.