URL dokumen:
https://prisma.simaster.ugm.ac.id/karya_files/slope-stability-analysis-using-electrical-resistivity-tomography-and-limit-equilibrium-method--a-case-study-from-girimulyo--kulon-progo-dcfcd07e645d245babe887e5e2daa016/1603a142-d28a-11ef-8115-00505691351c