Akorede, Yusuf Fatai, and Rafia Afroz. “The Relationship Between Urbanization, CO2 Emissions, Economic Growth and Energy Consumption in Nigeria”. International Journal of Energy Economics and Policy, vol. 10, no. 6, Oct. 2020, pp. 491-0, https://mail.econjournals.com/index.php/ijeep/article/view/9355.