EFEK MUTAGENIK EKSTRAK METANOL AMPAS BIJIJARAK Uatropha curcas L.) SISA PENGOLAHAN BAHAN BAKAR NABATI (BIOFUEL) MUTAGENICEFFECTOFETHANOLEXTRACTOFJatropha curcas L.SEEDSOLID WASTEOBTAINEDFROMRESIDUALFUELVEGETABLEPROCESSIN - Perpustakaan UGM, i-lib ([Yogyakarta] : Universitas Gadjah Mada, 2010)