Eneyew, Tesfaye Kebede, et al. “Second Refinement of Jacobi Iterative Method for Solving Linear System of Equations”. (IJCSAM) International Journal of Computing Science and Applied Mathematics, vol. 5, no. 2, Nov. 2019, pp. 41-47, https://journal.its.ac.id/index.php/ijcsam/article/view/4640.