Sharan, A. K. <br/><br/>
Encyclopaedia of applied psychology. 

 - New Delhi :  Anmol Publishers,       2002. 
 - x,901-1252p. 
 -  Volume 4 .
<br/><br/><label>ISBN: </label>812611147X 
<br/><br/><label>Source: </label> Reference 
<br/><br/><label>Dewey Class. No.: </label>Sk  P2.4  RR