Using WordPerfect 6. 

 - Special ed 
 - Cainta, Rizal :  Jemma,  c1992. 
 - xxxvi, 1196 p. : ill. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>971-370260-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>WordPerfect (Computer programs)