Handayani, Tri, Tri Yuliati, and Susilo. “Safekeeping Safe Doors Using Arm Cortex-A53 Microcontroller By Android”. Jurnal Mantik 6, no. 3 (November 30, 2022): 3799-3804. Accessed April 22, 2026. https://iocscience.org/ejournal/index.php/mantik/article/view/3339.