Yadav, R. S.  <br/><br/>
Advanced educational technology  
by R. S. Yadav 
 - Allahabad   Horizon Publishers  c1997 
 - xi,398p.; 21cm. 
<br/><br/><label>ISBN: </label>8172510152 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Instructional Technology<br/>Teaching--Aids and devices
<br/><br/><label>Dewey Class. No.: </label>371.3028  / YAD