IMF. (2019). International Monetary Fund, Oil Real GDP Growth in Constant Prices for Saudi Arabia [SAUNGDPORPCHPT], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/SAUNGDPORPCHPT, August 7, 2019.
Gregory, A. W. & Hansen, B. E. (1996). “Practitioners corner: tests for cointegration in models with regime and trend shifts”, Oxford Bulletin of Economics and Statistics, 58 (3), 555-560.
Johansen, S. & Juselius, K. (1990). “Maximum likelihood estimation and inference on cointegration with applications to the demand for money”, Oxford Bulletin of Economics and Statistics, 52 (2), 169-210.
Pesaran, M. H.; Shin, Y. & Smith, R. J. (2001). “Bounds testing approaches to the analysis of level relationships”, Journal of Applied Econometrics, 16 (3), 289-326.
World Bank. (2019). World Development Indicators. https://data.worldbank.org/country/saudi-arabia2view=chart (accessed at: 7/8/2019)