Census of India, 1991 <br/><br/>
Economic tables. Assam. V. 4, Pt.IIIB-B series-2, Table   B-9(f), B-12(f), B-13(I)(f), B-13(II)(f), B-14(f)    

 - Assam  Govt. Press           1991 
 - vii, 969p  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>Y:5.277sN91, N7.4