Investingation into the difficulties of the pupils of class 10th (of Delhi schools) in solving educations and problems in Algebra, and the construction of a diagnostic test for the same purpose. 1954 

 -  1954 
 - 86p. 
<br/><br/><br/>M.Ed. Dissertations, 1954 (Delhi University) 
<br/><br/><label>Source: </label>Dissertations