Ahmad, Fazl <br/><br/>
Omar :  the second caliph of Islam / 
Fazl Ahmad 
 - rev. ed. 
 - Lahore :  Sh. Muhammad Ashraf,  1968 
 - 102 p. ;  19 cm. 
 - Heroes of Islam series  3 .
<br/><br/> terbitan asal 1958 
<br/><br/><label>Subjects--Personal Names: </label><br/>'Umar ibn al-Khattab, Caliph,  d.644