United States Agency for International Development. (1992). Barriers to entry study: Final report. SGV Consulting.
Lua i Stíl Chicago (17ú heag.)United States Agency for International Development. Barriers to Entry Study: Final Report. Manila: SGV Consulting, 1992.
Lua MLA (9ú heag.)United States Agency for International Development. Barriers to Entry Study: Final Report. SGV Consulting, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.