Gómez-De-Arco, Lewis, Liliana Alzate-Rodríguez, Fredy Colpas-Castillo, y Roberto Fernández-Maestre. «Cation Xanthated Exchangers from Colombian Sub-Bituminous Coals Effectively Removed Cadmium and Lead from Aqueous Solutions ». Quimica Hoy 2, no. 1 (diciembre 31, 2011): 23–25. Accedido noviembre 21, 2024. https://quimicahoy.uanl.mx/index.php/r/article/view/89.