URL dokumen:
https://prisma.simaster.ugm.ac.id/karya_files/persistensi-petani-dalam-praktik-dan-pengembangan-pertanian-pegunungan-berkelanjutan-dcfcd07e645d245babe887e5e2daa016/f0613efe-aedb-11f0-ae8a-e4434b0aa6de