Jayakumar, Balasundaram. <br/><br/>
Information Communication Technology Grade-06 (English Medium). 

 - 1st, Ed. 
 - Colombo :  Lanka Book Depot, 
 - iv,88 p. 
<br/><br/><label>ISBN: </label>9786245787708 
<br/><br/><label>Dewey Class. No.: </label>001  / JAY