Al-Hassan, A. (2009). A Coincident Indicator of the Gulf Cooperation Council (GCC) Business Cycle. International Monetary Fund.
Cita Chicago (17th ed.)Al-Hassan, Abdullah. A Coincident Indicator of the Gulf Cooperation Council (GCC) Business Cycle. Washington, D.C.: International Monetary Fund, 2009.
Cita MLA (8th ed.)Al-Hassan, Abdullah. A Coincident Indicator of the Gulf Cooperation Council (GCC) Business Cycle. International Monetary Fund, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.