Onyekwere, S. C., 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”. Asian Bulletin of Energy Economics and Technology, vol. 6, no. 1, Feb. 2021, pp. 1-29, doi:10.20448/journal.507.2021.61.1.29.