Ray, P K S. <br/><br/>
Educational technology technology of instructional design part-1 / 
By P K S Ray. 
 - 1st Ed. 
 - New Delhi :  Dominant Publisher,  2014. 
 - 195p. ;  00 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EDUCATION.
<br/><br/><label>Dewey Class. No.: </label>371.33  / RAY