O. E. Trujillo Romero, A. L. Quintero Tovar, and J. C. Vega Suarez, “Treatability of the lixiviates of sanitary filling the hearts of the city of Valledupar through the use of activated carbon”, rev.investig.agrar.ambient., vol. 11, no. 1, pp. 77–90, Dec. 2019, doi: 10.22490/21456453.2750.