Sharma, R. C. (2020). Business Correspondence and Report Writing (6th.). McGraw Hill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSharma, R C. Business Correspondence and Report Writing. 6th. Chennai: McGraw Hill, 2020.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSharma, R C. Business Correspondence and Report Writing. 6th. McGraw Hill, 2020.
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