Nampyar, M. C. K. (1971). Vanijyattinte Prathimikatatvannal. State Institute of Languages.
Chicago Edition CitationNampyar, M C K. Vanijyattinte Prathimikatatvannal. Trivandrum: State Institute of Languages, 1971.
Deismireacht MLANampyar, M C K. Vanijyattinte Prathimikatatvannal. State Institute of Languages, 1971.
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