Rai, D.P.  Bajpai, R.P.  Singh, Neelam <br/><br/>
Encyclopaedia of distance education : Management and services of distance education vol.3 

 - New Delhi, India  APH Publishing Corporation  2007 
 - vi,186 
<br/><br/>
<br/><br/><label>ISBN: </label>9788131302446