Census of India,1971 <br/><br/>
Social cultural tables and special tables on scheduled tribes. Nagaland  V.15, Pt. 2C(1), Pt. 5-A. 

 - Nagaland  Govt. Press           1971 
<br/><br/> (Tables C-VII & C-VIII pt. B with their appendics and (Tables St-1 to St-5) 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>Y:5.277NsN71, L1.15.2C(1)