S. K. DAS <br/><br/>
TEACH YOURSELF 

 - New Delhi  ORIENT LONGMAN  1985 
 -  99P 
<br/><br/><label>ISBN: </label>0  86131  576  6 
<br/><br/><label>Subjects--Topical Terms: </label><br/><br/>
<br/><br/><label>Dewey Class. No.: </label>428/DAS/TEA