Census of India, 1991 <br/><br/>
Economic tables. Bihar. V. 5 & V. 2, Pt. IIIB-B series, Table   B-8(f) & B-9(f)    

 - Bihar  Govt. Press           1991 
 - vii, 783p  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>Y:5.273sN91, P0.5