Rajan, K. R. (1987). Keralathile vyavasayangal. State Institute of Languages.
Chicago Edition CitationRajan, K. R. Keralathile Vyavasayangal. Trivandrum: State Institute of Languages, 1987.
MLA Edition CitationRajan, K. R. Keralathile Vyavasayangal. State Institute of Languages, 1987.
Warning: These citations may not always be 100% accurate.