Madhu, Vaikom  <br/><br/>
Idayaalam / 
Vaikom Madhu 
 - Kottayam :  Manorama Books,  2020. 
<br/><br/><br/>In Malayalam 
<br/><br/><label>ISBN: </label>9789389649574 
<br/><br/><label>Subjects--Index Terms: </label>Signs and Symbols Punctuation Language - Evolution Linguistics - History 
<br/><br/><label>Dewey Class. No.: </label>411  / MAD/I