Global educational studies, 
Digumarti, Bhaskara Rao 
 - New Delhi,  Discovery publishing house  2001. 
 - 136p.:  ill.;  22 cm 
<br/><br/><label>ISBN: </label>1871416160 
<br/><br/><label>LC Class. No.: </label>DUCE LB14.7G56