Rather A R <br/><br/>
Essentials of instructional technology 

 - New Delhi  Discovery Publishing House  2004 
 - 263p 
<br/><br/><label>ISBN: </label>81-7141-818-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education Technology
<br/><br/><label>Dewey Class. No.: </label>371.33 RATE