Abdul Rani Mustaffa <br/><br/>
Umar al-Khattab :  tegas dan adil / 
Abdul Rani Mustaffa 
 - Shah Alam, Selangor :  'K' Publishing Sdn Bhd,  2003 
 - v, 162 p. :  ill. ;  22 cm. 
 - Siri empat khalifah .
<br/><br/><label>ISBN: </label>9838520551  RM8.00 
<br/><br/><label>Subjects--Personal Names: </label><br/>'Umar ibn al-Khattab, Caliph,  d. 644 <br/>Muhammad, Prophet,  d. 632 --Companions
<br/><br/><label>Subjects--Topical Terms: </label><br/>Caliphs