Padilla Moreno RM, Ospina Parra CA. Biological and Physiochemical Conditions of the Surface Waters of the Cauca River in the Urban Area of Popayán, Colombia. rev.ing.univ.Medellin [Internet]. 2021 Jul. 6 [cited 2024 Nov. 4];20(39):263-77. Available from: https://revistas.udem.edu.co/index.php/ingenierias/article/view/3727