Pena, Gemma S., <br/><br/>
Powerpoint Presentation: Its Effects to the Academic Performance of Grade III Pupils of Bonbon Elementary Schools, Libon Albay / 
Gemma S. Pena 
 - San Miguel, Iriga City  USANT  2015 
 - 183 leaves : 
<br/><br/>Includes bibliographical references 
<br/><br/><label>Dewey Class. No.: </label>507  / P31