Avena, Lorenza P. <br/><br/>
Yaman ng Wika at Panitikan 

 -  Pilipinas ng Diwa Scholastic Press, Inc.  1994 
<br/><br/><label>ISBN: </label>971-48-0024-2 
<br/><br/><label>Dewey Class. No.: </label>899.211 Yi 1994