Sampath, K. A., Vam, A. Panneersel and Santhanam, S. <br/><br/>
Introduction to educational technology 

 - 2nd ed. 
 - New Delhi  Sterling publishing  1987 
 - viii,282p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education
<br/><br/><label>Dewey Class. No.: </label>370  / SAM