Pengaruh Penggunaan Tepung Oncom Ampas Tahu (TOAT) terhadap Efesiensi Penggunaan Protein Itik Tegal Umur 1-12 Minggu (The Effiect of Oncom Tofu Waste Product, Meal on Protein Efficiency of The Tegal Duck 1-12 Weeks Old) - ISWANTO, HERU (2005)