The Isolation of Xanthones from Trunk Latex of Garcinia mangostana Linn. and Their Antimicrobial Activities - Anggia, Vivi; Faculty of Pharmacy/Sumatran Biota Laboratory, Andalas University, Kampus Limau Manis, Padang, 25163, West Sumatera (Universitas Gadjah Mada, 2015)