Kumar.N <br/><br/>
Educational technology 

 - India  AITBS,  2009 
 - 446p.;  24cm 
<br/><br/><label>ISBN: </label>9788174734297 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Teaching aids
<br/><br/><label>Dewey Class. No.: </label>371.33  / KUM