Sharma, R. C. (2002). Business Correspondence and Report Writing. Dorling Kindersley.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSharma, R C. Business Correspondence and Report Writing. New Delhi: Dorling Kindersley, 2002.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSharma, R C. Business Correspondence and Report Writing. Dorling Kindersley, 2002.
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