Vasudevan Nair R., . (1971). Sasyavargeeranatatwangal. : State Institute of Languages.
Vasudevan Nair R, . 1971. Sasyavargeeranatatwangal. : State Institute of Languages.
Vasudevan Nair R, . Sasyavargeeranatatwangal. : State Institute of Languages. 1971.