Latest Trends of Integration of Gas Leakage and Fire Detection Using IoT: A Survey. - Ahmad Anwar Zainuddin; Puvanaah Manokaran; Lee Chen Fei; Mohamed Ibrahim Abd Majid; Anne Dashini Kannan; Sehan Amandu Gamage; Shuaib Safeer; Nor Aznan Mohd Nor (RoViSP, 2021)