Sai Divya, M, and M Nagabhushana Rao. “Centralized Authentication Smart Locking System Using RFID, Fingerprint, Password and GSM”. International Journal of Engineering and Technology 7, no. 3.12 (July 20, 2018): 516–520. Accessed February 11, 2026. https://www.sciencepubco.com/index.php/IJET/article/view/16170.