Census of India, 1981 <br/><br/>
Handicraft survey report  conchshell Product. West Bengal. V. 23, Pt. X-D 
Census of India, 1981 
 - West Bengal  Bengal Govt Press          1981 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>Y:5.275sN81, M1.23-X-D