Roy , S. B. . <br/><br/>
Working Paper No. 18 /  
S. B. Roy and R. K. Bhadra. 
 - NULL ;   NULL. 
<br/><br/>NULL 
<br/><br/><label>ISBN: </label> NULL 
<br/><br/><label>Subjects--Index Terms: </label>ECONOMICS 
<br/><br/><label>Dewey Class. No.: </label>330  / ROY/W