Kondratov, A. <br/><br/>
ശബ്ദങ്ങളും ചിഹ്നങ്ങളും   Translated by Vasudevan, R. Tr. 

 - Third Edition 
 - Trivandrum:  State Institute Of Languages,  1990. 
 - viii,212p. : 
<br/><br/><br/>Malayalam Language 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sounds--Signs
<br/><br/><label>Dewey Class. No.: </label>419  / KON