CLEANING EFFECTIVITY OF SEVERAL SURFACTANS TO PESTISIDES RESIDUES ON FRESH APEL FRUITS - Lukitaningsih, Endang; Departement of Chemistry Faculty of Pharmacy Universitas Gadjah Mada Yogyakarta (Faculty of Pharmacy Universitas Gadjah Mada, Yogyakarta, Skip Utara, 55281, Indonesia, 2005)