Oxidation and Acetylation of Ursolic and Oleanolic Acids Isolated from Fragraea fragrans fruits; Antiproliferation of P388 Leukemia Cells - Basir, Dasril; Department of Chemistry, Faculty of Science, University of Sriwijaya, Palembang 30662, South Sumatra (Universitas Gadjah Mada, 2014)