Panigrahi, Shrikant Krupasindhu, et al. “Investigating Dynamic Effect of Energy Consumption, Foreign Direct Investments and Economic Growth on CO2 Emissions Between Oman and United Arab Emirates: Evidence from Co Integration and Causality Tests”. International Journal of Energy Economics and Policy, vol. 10, no. 6, Oct. 2020, pp. 288-9, https://mail.econjournals.com/index.php/ijeep/article/view/10026.