Pengaruh Ukuran Partikel dan Pencucian terhadap Degradasi in Sacco beberapa Bahan Pakan pada Sapi Peranakan Friesian Hostein = Effect of Particle Size and Rinsing Technique on in sacco Degradation of Some Feeds Stuff in - Perpustakaan UGM, i-lib ([Yogyakarta] : Universitas Gadjah Mada, 2003)