Nadabo, Y. S. ., and S. M. . . . . Salisu. “Testing the Validity of EKC Hypothesis Using CO2 Emissions and Ecological Footprint in Nigeria: The Role of Financial Development”. Energy Economics Letters, vol. 12, no. 1, Feb. 2025, pp. 17-33, doi:10.55493/5049.v12i1.5297.