URL dokumen:
https://prisma.simaster.ugm.ac.id/karya_files/organic-selenium-and-zinc--their-effects-in-feed-on-blood-profiles-and-antioxidant-capacity-in-early-lactating-dairy-cows-dcfcd07e645d245babe887e5e2daa016/72aa7154-f735-11f0-ae8a-e4434b0aa6de