Balagtasan : para sa elementarya sekondarya at tersyarya 
Villafuerte, Patrocinio V. 
 -  Mutya Publishing House.  2001 
 - 197 p. 
<br/><br/>
<br/><br/><label>ISBN: </label>9-71821018-0 
<br/><br/><label>Dewey Class. No.: </label>F 808.1 V71b 2001