Onyeka-Ubaka, J.N., Ogundeji, R.K. and Okafor, R.U. (2021) “Time Series Filters Applied to Improve Box-Jenkins Forecasting Approach”, Benin Journal of Statistics, 4(1), pp. 31– 52. Available at: https://bjs-uniben.org/index.php/home/article/view/35 (Accessed: 22 April 2026).