Rajan, K. R. (1987). Keralathile vyavasayangal. State Institute of Languages.
Chicago Edition CitationRajan, K. R. Keralathile Vyavasayangal. Trivandrum: State Institute of Languages, 1987.
Deismireacht MLARajan, K. R. Keralathile Vyavasayangal. State Institute of Languages, 1987.
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