Gutierrez, L. G., and J. C. Moreno-Piraján. “Immersion Enthalpy Variation of Surface-Modified Mineral Activated Carbon in Lead (II) Aqueous Solution Adsorption: The Relation Between Immersion Enthalpy and Adsorption Capacity”. Eclética Química, vol. 31, no. 4, Dec. 2006, pp. 15-21, doi:10.26850/1678-4618eqj.v31.4.2006.p15-21.