Purushothaman, P. V. <br/><br/>
Vigotskiyum vidhyabhyasavum / 
by P. V. Purushothaman 
 - Thrissur :  Kerala Sastra Sahitya Parishad,  2008. 
<br/><br/><br/>In Malayalam 
<br/><br/><label>Subjects--Index Terms: </label>Educational Psychology