United States Agency for International Development. (1992). Barriers to entry study: Final report. SGV Consulting.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited States Agency for International Development. Barriers to Entry Study: Final Report. Manila: SGV Consulting, 1992.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUnited States Agency for International Development. Barriers to Entry Study: Final Report. SGV Consulting, 1992.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.