Menor, Noel M. <br/><br/>
Development, implementation, and evaluation of a learning package on ration and proportion using the understanding by design framework 
Noel M. Menor 
 - Manila  De La Salle University  2011 
 - xii, 222p. 
<br/><br/>Master of Science 
<br/><br/><label>LC Class. No.: </label>CD-01719t