Jeyakumar, Balasundaram. <br/><br/>
Easy Approagh For National Certificate in computer Application :  NCCA- Part- 1. 

 - 1st, Ed. 
 - Jaffna :  2000. 
 - vii,103 p. 
<br/><br/><label>Dewey Class. No.: </label>005  / JEY