Zafra, Galileo S. <br/><br/>
Balagtasan  : kasaysayan at antolohiya 

 - Quezon City :  Ateneo De Manila University Press,  1999 
 - xiii, 281 p. 
<br/><br/><label>ISBN: </label>9715503195 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Filipino poetry--History