Mujitomo, M. T., H. Santoso, L. Widyawati, and D. Priyanto. “Home Security Voice Notification System With Arduino Sensor, PIR Based SMS Gateway”. International Journal of Engineering and Computer Science Applications (IJECSA), Vol. 1, no. 1, Mar. 2022, pp. 1-8, doi:https://doi.org/10.30812/ijecsa.v1i1.1793.