S. C. Onyekwere, J. Dike, and B. A. Eshun, “The Impact of Oil Price Shocks on Macroeconomic Activity: Searching Evidence from Oil Exporting and Importing Countries using Unstructured Vector Autoregressive (VAR) Model”, ABEE, vol. 6, no. 1, pp. 1–29, Feb. 2021.