E. PASCUAL, L., T. FLORENCONDIA, N., M. LADIGNON, C., J. BENEDICTO, E. A., C. CUDAPAS, J., & R. LADORES, S. (2021). Design and Construction of Gas Fire Alert System. Engineering And Technology Journal, 6(02), 790–797. https://doi.org/10.47191/etj/v6i2.01