Carvajal-Bernal, Ana M., Fernando Gómez, Liliana Giraldo, and Juan C. Moreno- Piraján. 2015. “Chemical Modification of Activated Carbons and Its Effect on the Adsorption of Phenolic Compounds”. Ingeniería Y Competitividad 17 (1):109-19. https://doi.org/10.25100/iyc.v17i1.2206.