Ginting, G., P. Andika, and A. Paembonan. “Subsurface Utility Mapping on SYT Road Segment, Yogyakarta Using Ground Penetrating Radar (GPR) Frequency 500 Mhz”. Gravitasi, Vol. 23, no. 2, Dec. 2024, pp. 33-42, https://bestjournal.untad.ac.id/index.php/GravitasiFisika/article/view/17118.