International Bank for Reconstruction and Development/The World Bank. (2010). Doing business 2011: Making a difference for entrepreneurs : comparing business regulation in 183 economies. International Bank for Reconstruction and Development/The World Bank.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Bank for Reconstruction and Development/The World Bank. Doing Business 2011: Making a Difference for Entrepreneurs : Comparing Business Regulation in 183 Economies. Washington, D.C: International Bank for Reconstruction and Development/The World Bank, 2010.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)International Bank for Reconstruction and Development/The World Bank. Doing Business 2011: Making a Difference for Entrepreneurs : Comparing Business Regulation in 183 Economies. International Bank for Reconstruction and Development/The World Bank, 2010.