M. Nur Hakim and S. Mohd Shah, “Portable Security Locker Using IoT”, jeva, vol. 5, no. 1, pp. 16–24, Jun. 2024, Accessed: Mar. 11, 2026. [Online]. Available: https://penerbit.uthm.edu.my/ojs/index.php/jeva/article/view/14771