Sanmuga Raja, J.R. and Azizul Azhar Ramli (2025) “Iot-Integrated Built-In Doorbell and Monitoring System”, Applied Information Technology And Computer Science, 6(2), pp. 1644–1663. Available at: https://publisher.uthm.edu.my/periodicals/index.php/aitcs/article/view/20455 (Accessed: 7 April 2026).