URL dokumen:
https://prisma.simaster.ugm.ac.id/karya_files/improving-growth-rates-of-ongole-crossbred-bulls-by-formulation-and-level-of-supplement-of-by-products-dcfcd07e645d245babe887e5e2daa016/817b811c-4575-11ef-ae9c-e4434b0aa6de