Des Raj <br/><br/>
Construction of a diagnostic test in geometry for investigation into the difficulties of the students of class 9th in terms, concepts, definitions, theorems and riders up to the theorem 

 -  1966 
 - ii,76p. 
<br/><br/><br/>M. Ed. Dissertations (Agra University) 
<br/><br/><label>Source: </label>Dissertations