Burbano Garcés ML, Figueroa Casas A. Spatio-temporal variability of anions (SO4 -2 y Cl-) in water rain of Popayán, Colombia. rev.ing.univ.Medellin [Internet]. 1 [cited 2024May2];14(26):13-7. Available from: https://revistas.udem.edu.co/index.php/ingenierias/article/view/1166