Fachrul, Muhammad, Adelhard Rehiara, and Pandung Sarungallo. “IoT-Enabled Double-Layered Security Door Lock System for Enhanced Safety”. Journal of Innovation Materials, Energy, and Sustainable Engineering 4, no. 1 (July 27, 2026). Accessed July 28, 2026. https://journal-iasssf.com/index.php/JIMESE/article/view/3592.