Gaballa, F. khalifa, and N. F. . Haron. “Examining the Role of Oil and Non-Oil Revenues, and Oil Price Fluctuations on Economic Growth in African Oil Exporting Countries”. International Journal of Digital Marketing Science, vol. 2, no. 2, Aug. 2025, pp. 107-22, doi:10.54099/ijdms.v2i2.1216.