PENGARUH KOMPOSISI LARUTAN CETAK (PVDF/NMP/PEG) DAN NONPELARUT (H2O/CH3OH) TERHADAP KINERJA MEMBRAN PVDFDALAM PEMISAHAN PEWARNA INDIGOTHE EFFECT OF CASTING SOLUTION COMPOSITION (PVDF/NMP/PEG)AND NON SOLVENT (H2O/CH3OH) ON PVDF MEMBRANESPERFORMANCE IN THE INDIGO DYE SEPARATION - MARGIYANI, TRI (UNESA Journal of Chemistry, 1970)