Jamsa, Kris <br/><br/>
Costs of educational media: Guidelines for planning and evaluation 

 - London  Sage Publications  1978 
 - 255p. 
<br/><br/><label>ISBN: </label> RS 31.00 
<br/><br/><label>Source: </label> RS 31.00 
<br/><br/><label>Dewey Class. No.: </label>371.3078 JAM