Gopalakrishnan, Naduvattom  <br/><br/>
Malayalabhasha Charithram / 
compiled by Naduvattom Gopalakrishnan 
 - 3rd ed. 
 - Thiruvananthapuram:  The State Institute of Languages,  2019. 
 - 354p. 
<br/><br/><label>ISBN: </label>9788120047648 
<br/><br/><label>Dewey Class. No.: </label>894.812  / GOP/M