Cedo, Maurene B.,  <br/><br/>
The block Model Approach in Teaching Elementary Mathematics IV: Its Effectiveness / 
Maurene B. Cedo 
 - San Miguel, Iriga City  USANT  2010 
 - 125 leaves : 
<br/><br/>Includes bibliographical references 
<br/><br/><label>Dewey Class. No.: </label>372.7  / C33