Guptan, R. (1976). Samuhya Vikasanavaum Vyapanavum. State Institute of Languages.
Chicago Edition CitationGuptan, R.K. Samuhya Vikasanavaum Vyapanavum. Trivandrum: State Institute of Languages, 1976.
MLA Edition CitationGuptan, R.K. Samuhya Vikasanavaum Vyapanavum. State Institute of Languages, 1976.
Warning: These citations may not always be 100% accurate.