Atmiasri, et al. “Design of an Internet of Things (IoT) Based Early Fire Prevention System Due to LPG Gas Leakage Using NodeMCU ESP8266 Module”. Best : Journal of Applied Electrical, Science and Technology, vol. 6, no. 1, Mar. 2024, pp. 1-6, https://doi.org/10.36456/best.vol6.no1.8787.