SAHAK, AINA ZHAFIRAH, LILYWATI BAKAR, and ZURINA ABDUL WAHAB. “Emergency Motor Stopper Using Ultrasonic Sensor”. Progress in Engineering Application and Technology 6, no. 1 (April 29, 2025): 417–423. Accessed April 7, 2026. https://penerbit.uthm.edu.my/periodicals/index.php/peat/article/view/19222.