Sanmugam. nagalatchumi <br/><br/>
விண்ணளவு சாதனை/  Tamil 
 Vinnalavu Shadanai 
Sanmugam,Nagalatchumi. 
 - India:  Manjul publishing house,  2012. 
 - 470p.:  20cm. 
<br/><br/><label>ISBN: </label>9788183222952 
<br/><br/><label>Dewey Class. No.: </label>