E. M. Ikegwu, G. B. Karokatose, S. O. Obidiegwu, and D. S. Udo, “MULTIVARIATE TIME SERIES MODELING OF THE DOLLAR-TO-NAIRA EXCHANGE RATES ON SOME SELECTED ECONOMIC VARIABLES”, Economics and Statistics Research Journal (ESRJ), vol. 16, no. 7, pp. 64–72, Aug. 2025.