Gawaing reference at impormasyon : introduksiyon 
Buenrostro Jr., Juan C. 
 -  University of the Philippines-Sentro ng Wikang Filipino.  1998 
 - 150 pages. 
<br/><br/>
<br/><br/><label>ISBN: </label>9-71878166-8 
<br/><br/><label>Dewey Class. No.: </label>F 028.7 B86g 1998