Ujjwal, Kumar  <br/><br/>
250 Probables for UPSC Main (General Studies) 
/by Kumar  Ujjwal 
 -  Unique Publishers ;  2012. 
<br/><br/><label>ISBN: </label>9788183571036 
<br/><br/><label>Dewey Class. No.: </label>001  / UJJ/A