Das, R. C. <br/><br/>
Educational technology  : a basic text 

 - New Delhi  ; Sterling Publisher  , 1993 
 - 242p. 
<br/><br/><label>ISBN: </label>8120715055  200 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education
<br/><br/><label>Dewey Class. No.: </label>370  / DAS