Anusuyadevi M. Be, Bhuvaneshwari KN, Mythizhi P, Jayanthaa D, and Mrs.Sandra S. “IOT Based Intelligent Gas Leakage Detector”. International Journal of Intellectual Advancements and Research in Engineering Computations, vol. 9, no. 2, June 2021, pp. 170-6, https://ijiarec.com/ijiarec/article/view/154.