al-'Aqqad,'Abbas Mahmud,  1889-1964 <br/><br/>
Kecemerlangan Khalifah Umar bin Khattab / 
Abbas Mahmud al Akkad ; alihbahasa : H. Bustami A. Ghani, Zainal Abidin Ahmad 
 - Jakarta :  Bulan Bintang,  1978 
 - 344 p. ;  21 cm. 
<br/><br/>
<br/><br/><label>Subjects--Personal Names: </label><br/>'Umar ibn al-Khattab, Caliph,  644