Carvajal-Bernal, A. M., Gómez, F., Giraldo, L., & Moreno- Piraján, J. C. (2015). Chemical modification of activated carbons and its effect on the adsorption of phenolic compounds. Ingeniería Y Competitividad, 17(1), 109–119. https://doi.org/10.25100/iyc.v17i1.2206