COORDINATION STATE AND AGGREGATION PROCESS OF BACTERIOCHLOROPHYll A AND ITS DERIVATIVES: STUDY ON ACETONE-WATER AND METHANOL-WATER SOLVENTS Keadaan Koordinasi dan Proses Agregasi Pada Bakterioklorofil a Serta Turunannya - Perpustakaan UGM, i-lib ([Yogyakarta] : Universitas Gadjah Mada, 2008)