Ojha, J. M. <br/><br/>
Revision of differential aptitude test for higher secondary schools 
J. M. Ojha 
 - Delhi  Manasayan  1975. 
 - 234p.  22cm. 
<br/><br/> The study reported herein is largely based upon the PhD dissertation submitted to Baroda University and approved by them in 1967 
<br/><br/><label>Dewey Class. No.: </label>373.1264