Venkataiah, N. <br/><br/>
Educational technology 

 - New Delhi  ; Aph Publishing  , 1996 
 - xx,234p. 
<br/><br/><label>ISBN: </label>8170247233  400 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education
<br/><br/><label>Dewey Class. No.: </label>370  / VEN