Census of India,1971 <br/><br/>
General economic tables. West Bengal  V.22, Pt. 2-B. 

 - West Bengal  Bengal Govt. Press          1971 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>Y:5.275sN71, L1.22-2B2