Muhammad Al-Mahdi <br/><br/>
On being Khalifah of Allah 

 - Ampang, Selangor  The Khalifah Institute  2004 
 - 103 p 
 - Khalifah Series No 2 .
<br/><br/> Undersanding the concept of Khalifah 
<br/><br/><label>ISBN: </label>9834203713 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Caliphs
<br/><br/><label>Dewey Class. No.: </label>Mc.346 ONB