compiled and edited by S P Ruhela and R S Khan <br/><br/>
Joyful learning : its foundation and implementation, in the context of universalization of elementary education 

 - Regency, New Delhi  1997 
 - xii,256p ill. 
<br/><br/><label>ISBN: </label>81-86030-55-7 
<br/><br/><label>Dewey Class. No.: </label>372 Ruh/Kha