Vasudeva Bhattathiri O. V., . (1970). Bashasastram. Kottayam: Current Books.
Vasudeva Bhattathiri O V, . 1970. Bashasastram. Kottayam: Current Books.
Vasudeva Bhattathiri O V, . Bashasastram. Kottayam: Current Books. 1970.