Siregar, R.F., Affandi, A., Rohana, R., Nasution, A.R. and Tanjung, I. 2024. IoT Smart Control System: Smoke and Fire Detection Using SIM900A Module. Journal of Electrical Technology UMY. 7, 2 (Apr. 2024), 48–56. DOI:https://doi.org/10.18196/jet.v7i2.19908.