Monippally, M. (1997). The craft of business letter writing. TMH.
Chicago-čujuhus (17. p.)Monippally, Mathew. The Craft of Business Letter Writing. New delhi: TMH, 1997.
MLA-čujuhus (9. p.)Monippally, Mathew. The Craft of Business Letter Writing. TMH, 1997.
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