URL dokumen:
https://prisma.simaster.ugm.ac.id/karya_files/virtual-ekskursi-geologi-regional-jalur-merden---wadas-lintang---paweden---dieng---situs-liyangan-dcfcd07e645d245babe887e5e2daa016/1bb4f664-ecc2-11ee-ada0-e4434b0aade8