Census of India, 1981 <br/><br/>
House holds and household population by language, mainly spoken in the household . India. V. 1 

 - India  Govt. Press           1981 
<br/><br/> Paper 1 of 1987 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>Y:5.2sN81, M1.1-1