Balagurusamy, E. <br/><br/>
Programming in BASIC including IBM PC BASIC 

 - 2 
 - New Delhi  Tata Mcgraw-Hill Publishing Company  1989 
 - p.280 
<br/><br/><label>ISBN: </label>0074600222 
<br/><br/><label>Dewey Class. No.: </label>621.3819642 B17P