Khan, Majid Ali <br/><br/>
The pious caliphs / 
by Dr Majid Ali Khan; edited by Syed Athar Husain 
 - Kuala Lumpur. :  Islamic Book Trust.,  repr.2011, 1998 
 - xvii, 237 p. ;  22 cm. 
<br/><br/>Bibliography p. 235-237   
<br/><br/><label>Subjects--Topical Terms: </label><br/>Caliphs -- Biography<br/>Islamic Empire --History --622-661