?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=CHRISTY+HELMATRIA+PUTRI&rft.au=22043584%2C+CHRISTY+HELMATRIA+PUTRI&rft.aulast=22043584&rft.date=February+2011&rft.tpages=52&rft.title=IMPLEMENTASI+ALGORITMA+DEPTH+FIRST+SEARCH+(DFS)+DAN+BACKTRACKING+DALAM+PERMAINAN+FREECELL&rft.degree=Bachelor&rft.inst=Universitas+Kristen+Duta+Wacana