Subsurface Utility Mapping on SYT Road Segment, Yogyakarta Using Ground Penetrating Radar (GPR) Frequency 500 Mhz. Gravitasi [Internet]. 2024 Dec. 31 [cited 2026 Sep. 30];23(2):33-42. Available from: https://bestjournal.untad.ac.id/index.php/GravitasiFisika/article/view/17118