URL dokumen:
https://prisma.simaster.ugm.ac.id/karya_files/sustainable-tourism-ecosystem-in-strategic-national-tourism-area--kspn--borobudur-yogyakarta-and-prambanan--byp--dcfcd07e645d245babe887e5e2daa016/da90d408-e91e-11ef-ae8a-e4434b0aa6de