Taneja, Vidya Ratna. <br/><br/>
Educational Thought and Practice /  

 - Nineth Ed. /  
 - New Delhi-16 :   Sterling Publishers Pvt. ltd. ,   1986 
 - p.351 :  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Functions
<br/><br/><label>Dewey Class. No.: </label>T  / M6T;1