Sameer, A. S., M. Yusuf, and U. L. Ukafor. “AN APPLICATION OF TIME INDEPENDENT FOURIER AMPLITUDE MODEL ON FORECASTING THE UNITED STATE POPULATION ”. FUDMA JOURNAL OF SCIENCES 6, no. 1 (March 31, 2022): 54 - 59. Accessed April 3, 2025. https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/881.