"Nafees Khan" <br/><br/>
Abu Bakar Siddiq( the first caliph of Islam) 

 -  Goodword Books Pvt. Ltd.  2014 
 - 34 
<br/><br/><label>ISBN: </label>9788178985442 
<br/><br/><label>Dewey Class. No.: </label>297  / 648