Acharya Chandrani <br/><br/>
Acquisition of basic geometric ideas among midle school children with special reference to certain environmental effects 

 -  2015 
 - xvi, 241p. 
<br/><br/><br/>Ph.D Thesis (University of Calcutta); Gifted by Prof. Bharaty Baveja 
<br/><br/><label>Source: </label>Theses