Silva, Juan, Fabián Sánchez, Abraham Morales, and Anselmo Miron. 2018. “Characterization of Crystals Growth in a Crystallizer-Evaporator through Digital Image Processing Using the Sobel Filter”. ITEGAM-JETIA 4 (13), 103-8. https://doi.org/10.5935/2447-0228.201854.