Kochunarayanan T., . (1972). Adhunika Jyamithikal. : State Institute of Language.
Kochunarayanan T.K, . 1972. Adhunika Jyamithikal. : State Institute of Language.
Kochunarayanan T.K, . Adhunika Jyamithikal. : State Institute of Language. 1972.