URL dokumen:
https://prisma.simaster.ugm.ac.id/karya_files/analisis-perilaku-air-di-perkebunan-kelapa-sawit-pada-tanah-spodosol-dan-ultisol-menggunakan-soil-moisture-content-monitoring-system-smcms--dcfcd07e645d245babe887e5e2daa016/5439f7ff-9dab-11ef-a04f-00505691351c