Produksi Gula Reduksi Selama Fermentasi Biji Kakao dalam Silinder Putar dengan Pengurangan Pulp Pra Fermentasi = Production of Reducing Sugars during Fermentation of Cocoa Beans in Rotary Cylinder through Depulping Step - Perpustakaan UGM, i-lib ([Yogyakarta] : Universitas Gadjah Mada, 2002)