Sohail, Ahmad <br/><br/>
Sakhtiyat; Tareekh,nazaria aur tanqeed(urdu) 

 - Delhi  Takhleeqkar publishers  1999 
 - 448p. 
<br/><br/><label>ISBN: </label>8187231203 
<br/><br/><label>Dewey Class. No.: </label>428  So64S