Nāgavarmma's Kavyavalokanam, a standard Kannaḍa work on poetics, of the 12th century: and the same author's Karṇāṭaka bhāshā-bhúshanam (rev. ed.), a Kannaḍa grammar in Sanscrit sûtrás, expanding S'abdasmṛiti, the first chapter of Kâvyâvalôkanam R.Narasimhachar