Oktafianto, Yedhi, dkk. “Object Movement Detection System Using GPS, Passive Infrared Sensor, and Ultrasonic Sensor for Military Training Applications: Telekomunikasi Militer”. Jurnal Telkommil, vol. 7, no. 1, Mei 2026, hlm. 95-109, doi:10.54317/kom.v7i1.764.