Frey, R. S. (2012). Successful proposal strategies for small businesses: Using knowledge management to win government, private-sector, and international contacts (6th ed.). Artech House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFrey, Robert S. Successful Proposal Strategies for Small Businesses: Using Knowledge Management to Win Government, Private-sector, and International Contacts. 6th ed. Boston: Artech House, 2012.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFrey, Robert S. Successful Proposal Strategies for Small Businesses: Using Knowledge Management to Win Government, Private-sector, and International Contacts. 6th ed. Artech House, 2012.
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