Faizalhaq, Z., Y. Prasetyo, B. Winarno, S. A. Pambudi, and I. B. Sumafta. “Warning & Safety System Pada Eskalator Otomatis Berbasis Plc Dan Hmi”. JEECAE (Journal of Electrical, Electronics, Control, and Automotive Engineering), vol. 7, no. 2, Nov. 2022, pp. 21-24, doi:10.32486/jeecae.v7i2.617.