Sameer AS, Isah Y, Bello A. AN APPLICATION OF TIME DEPENDENT FOURIER AMPLITUDE MODEL ON FORECASTING THE UNITED STATE POPULATION. FJS [Internet]. 2023 Aug. 30 [cited 2025 Oct. 29];7(4):133-8. Available from: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/1908