Manasseh, Charles O., Godfrey I. Ihedimma, Felicia C. Abada, Ifeoma C. Nwakoby, Benson O. Njoku, Jude T. Kesuh, Chizoba G. Okeke, Felix C. Alio, and J. U. J. Onwumere. “Did Global Financial Crisis Worsen Oil Price Volatility and Banking Sector Nexus in Selected ECOWAS and G-7 Member Countries?”. International Journal of Energy Economics and Policy 10, no. 6 (October 10, 2020): 390–395. Accessed May 23, 2022.