N. K. Jumaa, Y. M. Abdulkhaleq, M. A. Nadhim, and T. A. Abbas, “IoT Based Gas Leakage Detection and Alarming System using Blynk platforms”, IJEEE, vol. 18, no. 1, pp. 64–70, Feb. 2022, doi: 10.37917/ijeee.18.1.8.