Ray, Hariyash. <br/><br/>
Bhasha, shiksha aur aupniveshik dasta / 
Hariyash Ray. 
 - New Delhi :  Isha Gyandeep,  2017. 
 - 144. 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9789382543916 :  Rs.450/- 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hindi language--History.<br/>Language and languages--Origin.<br/>Historical linguistics.