Jha, Avdhesh. <br/><br/>
Educational Research: Methods, Tools and Techniques 

 - Germany:  VDM Verlag Dr. Muller Gmbti and Co. KG.,  2011. 
 - 410. 
<br/><br/><label>ISBN: </label>9783639321166 
<br/><br/><label>Dewey Class. No.: </label>370.78  / JHA