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 citiranjeGuptan, R.K. Samuhya Vikasanavaum Vyapanavum. State Institute of Languages, 1976.
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