?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Oki+Tirto+Nugroho&rft.au=22053855%2C+Oki+Tirto+Nugroho&rft.aulast=22053855&rft.inst=Universitas+Kristen+Duta+Wacana&rft.title=IMPLEMENTASI+METODE+DETEKSI+TEPI+SOBEL+DAN+HAMUNTUK+PENGENALAN+POLA+PADA+CITRA+LOGO+UNIVERSITAS+KRISTEN+DUTA+WACANA&rft.degree=Bachelor&rft.tpages=53&rft.date=October+2011