Varma C RR, . (1996). Prakrithijeevanam. Trivandrum: State insitute of languages; Trivandrum.
Varma C RR, . 1996. Prakrithijeevanam. Trivandrum: State insitute of languages; Trivandrum.
Varma C RR, . Prakrithijeevanam. Trivandrum: State insitute of languages; Trivandrum. 1996.