Census of India, 1981 <br/><br/>
General economic tables &  social and cultural tables. V. 15, Pt. 3-A & B& 4-A 

 - Nagaland  Govt Press           1981 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>Y:5.277sN81, M1.15.3-A&B&4-A