?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=22043621&rft.au=22043621%2C+HISAR+MARTAHAN+SIMBOLON&rft.aufirst=HISAR+MARTAHAN+SIMBOLON&rft.inst=Universitas+Kristen+Duta+Wacana&rft.degree=Bachelor&rft.title=IMPLEMENTASI+SELF%E2%80%93ORGANIZING+MAP+DALAM+KOMPRESI+CITRA+DIGITAL&rft.tpages=45&rft.date=February+2011