Sampath, K. <br/><br/>
Introduction to educational technology / 
K. Sampath, A. Panneerselvam, S. Santhanam. 
 - 4th ed. 
 - New Delhi :  Sterling Publishers,  1998. 
 - xi, 367 p. :  black and white illustrations ;  21 cm. 
<br/><br/> Includes bibliography and index. 
<br/><br/><label>ISBN: </label>8120703766 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational innovations.<br/>Educational technology.
<br/><br/><label>Dewey Class. No.: </label>CIR 371.3078 Sa47i 1998