A. L.Vishnu Ram3 , A.Vamsidhar4, A. Aditya Shankar1, P.R.K.Sastry2,. “Finger Print Based Door Locking System”. International Journal of Engineering and Computer Science 4, no. 03 (December 30, 2017). Accessed April 25, 2024. http://ijecs.in/index.php/ijecs/article/view/1019.