Census of India, 1981 <br/><br/>
General economic tables. Tamil Nadu. V. 20, Pt. 3-A & B (ii) 
Census of India, 1981 
 - Tamil Nadu   Govt. Press          1981 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>Y:5.211sN81, M1.20-3-A&b(ii)