F. Maiza, S. Nafisah, K. S. Suhaimi, and A. F. Fahrezi, “Design of LPG Leakage Detection Device using MQ-2 Sensor Equipped with Hazard Warning System”, JurnalEcotipe, vol. 11, no. 2, pp. 143–150, Aug. 2024, doi: 10.33019/jurnalecotipe.v11i2.4495.