Sant, T. (2012). Persuasive business proposals: Writing to win more customers, clients, and contracts (3rd ed.). AMACOM.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSant, Tom. Persuasive Business Proposals: Writing to Win More Customers, Clients, and Contracts. 3rd ed. New York: AMACOM, 2012.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSant, Tom. Persuasive Business Proposals: Writing to Win More Customers, Clients, and Contracts. 3rd ed. AMACOM, 2012.
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