Afolayan, Olufunmilayo T., Henry Okodua, Hassan Oaikhenan, and Oluwatoyin Matthew. “Carbon Emissions, Human Capital Investment and Economic Development in Nigeria”. International Journal of Energy Economics and Policy 10, no. 2 (January 21, 2020): 427–437. Accessed December 23, 2024. https://mail.econjournals.com/index.php/ijeep/article/view/8476.