Karunakaran, Thirunalloor <br/><br/>
Malayala bhasha parinamam sidhanthangalum vasthuthakalum (m) 

 -  Prabhatam Printing & Publishing Co. Pvt. Ltd., TVPM  1985 
 - 108 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Malayalam language history
<br/><br/><label>Dewey Class. No.: </label>PG 4M0.9  KAR-M