Jain Satish.  <br/><br/>
O -level made simple it tools and applications 

 - 2nd edition. 
 - New delhi :   B P B Pub.   2006. 
 - 292.  
<br/><br/><label>ISBN: </label>81-7656-713-2  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering,
<br/><br/><label>Dewey Class. No.: </label>004  / JAI