Kumar Arun <br/><br/>
Age, teaching models and concept attainment 

 - New Delhi  Manak Publications  1998 
 - 155 
<br/><br/><label>ISBN: </label>81 86562 55 9 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>371.3