Ferrin Pacheco, P. E., D. J. Mendoza Chipantasi, and N. V. E. “Facial Recognition Based on Machine Vision”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), vol. 9, no. 1-3, Mar. 2017, pp. 165-8, https://jtec.utem.edu.my/jtec/article/view/1764.