Vazhithunai Raman,A.S. Ungal Arumaik Kuzhanaikku Athirstamana Peyar Vaippathu Eppadi / A.S.Vazhithunai Raman, - 5th ed. - Chennai: Bharathi Pathippagam, 2013. In Tamil Subjects--Index Terms: Linguistics . Proper Noun.