NCERT   <br/><br/>
SUPPLEMENTARY MATERIAL FOR BIOLOGY , CHEMISTRY, MATHEMATICS AND PHYSICS FOR CLASSES XI-XII   

 - 1ST   
 - NEW DELHI  NCERT  2011. 
 - 43   
<br/><br/><label>ISBN: </label>9789350071694   
<br/><br/><label>Dewey Class. No.: </label>505/NCE