Chinwe C, Ibebuogu, Philip Seth, and Anyaduba Obiageli J. “Biometric Authentication System Using Face Geometry”. International Journal of Engineering and Computer Science 8, no. 08 (August 20, 2019): 24805-24813. Accessed September 22, 2019. http://ijecs.in/index.php/ijecs/article/view/4332.