VILLABONA-ORTIZ, Angel; TEJADA-TOVAR, Candelaria  and  ORTEGA-TORO, Rodrigo. Adsorption Thermodynamics of Cr(VI) Removal by Using Agro-Industrial Waste of Oil Palm Bagasse and Plantain Peels. Ing. Investig. [online]. 2020, vol.40, n.3, pp.22-28.  Epub Jan 25, 2021. ISSN 0120-5609.