Kumar, Puvvada George Raja. <br/><br/>
Educational Research / 
By Puvvada George Raja Kumar. 
 - 1st Ed. 
 - Delhi :  Ideal Publishing Solutions,  2017. 
 - xii,234p. ;  00 cm. 
<br/><br/><label>ISBN: </label>9788179460658 
<br/><br/><label>Dewey Class. No.: </label>370.72  / KUM