VELAYUDHAN, Panikkassery <br/><br/>
SANCHARIKAL KANDA KERALAM 

 - 4th Ed. 
 - KOTTAYAM  Current Books, Kottayam   2012 
<br/><br/><label>ISBN: </label>978-81-240-1053-2 
<br/><br/><label>Dewey Class. No.: </label>954.83  / VEL/S