P, A. R., I. Prasetyaningrum, and D. Hardiyanto. “LPG Gas Leakage Safety System Prototype Using Servo Motor With MQ-2 And MQ-6 Sensors”. ICEETE Conference Series, Vol. 2, no. 1, Dec. 2024, pp. 252-60, doi:10.36728/iceete.v2i1.197.