Mishra. A.D. <br/><br/>
Banijyik Patiganit  Aru Prathamik Parishankhya Vigyan 

 - 2nd. 
 - Guwahati:  Assam Book Deopt. 
 - 199. 
<br/><br/><label>Dewey Class. No.: </label> / MIS