Census of India, 1981 <br/><br/>
General population tables and primary census abstract. Sikkim. V. 19, Pt. 2 A & 2B 

 - Sikkim  Govt Press           1981 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>Y:5.2973sN81, M1.19-2A&2B