León Pabón, J. A.; Mejía Pilonieta, T. J.; Carrillo Moreno, L. F.; Buendia Lombana, H.; Zapata, J. F.; Díaz Prada, C. A. Experimental Comparison for the Calculation of Rock Wettability Using the Amott-Harvey Method and a New Visual Method. CT&F Cienc. Tecnol. Futuro 2014, 5, 5-22.