Rao, Usha <br/><br/>
Educational technology 
Usha Rao 
 - Bombay  Himalaya Publishing House  1991 
 - [8],237p.:ill.;  22cm. 
<br/><br/><label>ISBN: </label>8170403111 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational Technology<br/>Institutional Technology<br/>Teaching-Aids and devices
<br/><br/><label>Dewey Class. No.: </label>371.3028  / RAO