Abou Elseoud, M. S., and F. M. Kreishan. “Energy-GDP Nexus for Oil-Exporting Country: The Case of Bahrain”. International Journal of Energy Economics and Policy, vol. 10, no. 6, Oct. 2020, pp. 80-86, https://econjournals.com/index.php/ijeep/article/view/9883.