O. M. Babatunde, C. O. Ayegbusi, D. E. Babatunde, P. O. Oluseyi, and T. E. Somefun, “Electricity Supply in Nigeria: Cost Comparison between Grid Power Tariff and Fossil-Powered Generator”, IJEEP, vol. 10, no. 2, pp. 160–164, Jan. 2020.