Das, B. C., <br/><br/>
Educational technology 
by B. C. Das 
 - 1st. 
 - Ludhiana:  Kalyani Publishers,  2001. 
 - 162p:  23cm. 
<br/><br/><label>ISBN: </label>81-7096-986-7 
<br/><br/><label>Subjects--Index Terms: </label>Education Educational technology 
<br/><br/><label>Dewey Class. No.: </label>370.15