ON THE PERFORMANCE OF SARIMA AND SARIMAX MODEL IN FORECASTING MONTHLY AVERAGE RAINFALL IN KOGI STATE, NIGERIA. FJS [Internet]. 2023 Dec. 19 [cited 2025 Sep. 11];7(6):24-31. Available from: http://www.fjsadmin.fudutsinma.edu.ng/index.php/fjs/article/view/2095