?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=22074373%2C+Margomgom+Sitohang&rft.aufirst=Margomgom+Sitohang&rft.aulast=22074373&rft.title=PENGENALAN+POLA+ULOS+DENGAN+MENGGUNAKAN+METODE+PREWITT+EDGE+DETECTION+DAN+METODE+BACKPROPAGATION&rft.tpages=27&rft.degree=Final+Year+Projects+(S1)&rft.date=November+2013&rft.inst=Universitas+Kristen+Duta+Wacana