?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=UMAR+ASASUDDIN+SOKAH%2C+&rft.aulast=UMAR+ASASUDDIN+SOKAH&rft.aufirst=+&rft.date=7+July+2008&rft.atitle=KHALIFAH+UMAR+(634-644)&rft.title=%2FJurnal%2FAl-Jamiah%2FAl-Jamiah+No.+32+Th.+1984%2F&rft.genre=article