Ndanusa, Abdulrahman, DavidB. E., AyantolaB. B., and AbubakarA. W. “IMPROVING PRECONDITIONED GAUSS-SEIDEL ITERATIVE METHOD FOR L-MATRICES”. FUDMA JOURNAL OF SCIENCES 4, no. 1 (April 14, 2020): 453 - 459. Accessed April 25, 2024. https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/67.