?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=22104829%2C+Indra+Setiawan+Herwanto&rft.aufirst=Indra+Setiawan+Herwanto&rft.aulast=22104829&rft.date=February+2015&rft.inst=Universitas+Kristen+Duta+Wacana&rft.degree=Final+Year+Projects+(S1)&rft.title=IMPLEMENTASI+PERMAINAN+FLOW+PADA+PEMBANGUNAN+SISTEM+CAPTCHA&rft.tpages=41