Mahmood, Haider, and Ahmad M.A. Zamil. “Oil Price and Slumps Effects on Personal Consumption in Saudi Arabia”. International Journal of Energy Economics and Policy 9, no. 4 (June 1, 2019): 12–15. Accessed April 20, 2024. https://www.econjournals.com/index.php/ijeep/article/view/7763.