Kesavan Nair, R. (1979). Gramavikasanam. State Instititute of Languages.
Chicago Edition CitationKesavan Nair, R. Gramavikasanam. Thiruvananthapuram: State Instititute of Languages, 1979.
MLA Edition CitationKesavan Nair, R. Gramavikasanam. State Instititute of Languages, 1979.
Warning: These citations may not always be 100% accurate.