Alege, Philip O., Queen-Esther Oye, Omobola O. Adu, Barnabas Amu, and Tolu Owolabi. 2017. “Carbon Emissions and the Business Cycle in Nigeria”. International Journal of Energy Economics and Policy 7 (5):1-8. https://mail.econjournals.com/index.php/ijeep/article/view/5076.