Panchal	 <br/><br/>
Computer Science Information Technology for Class 2	-	 
Sangeeta Panchal	 
 - 5	 
 - Newdelhi	  Oxford University press	  2005				 
 - 63 
<br/><br/><label>ISBN: </label>195670736	 
<br/><br/><label>Dewey Class. No.: </label>4	  / PAN