R. A. Anugrah, F. B. Adhidarma, R. S. Hutama, V. K. R. Maulana, and Y. F. Winarno, “Arduino and IoT-based LPG gas leak detection systems: a focused review of sensors, architectures, and reliability issues”, JAMAT, vol. 3, no. 1, pp. 43–53, Jun. 2026.