Production of Reducing Sugar from Cassava Solid Waste by Simultaneous Ultrasonication and Acid Hydrolysis - Simanjuntak, Wasinton; Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Lampung, Jl. Soemantri Brojonegoro No. 1 Bandar Lampung 35145 (Universitas Gadjah Mada, 2014)