URL dokumen:
https://prisma.simaster.ugm.ac.id/karya_files/analisis-potensi-angkutan-barang-melalui-kereta-api-di-pulau-jawa-dcfcd07e645d245babe887e5e2daa016/5b02dbc0-9d62-11ee-abf0-e4434b0aade8