Abdulali, R. A., Bnis, M. I., Altayib, A. A. and Awin, A. M. (2022) “Exact Ordering”, Journal of Progressive Research in Mathematics, 19(2), pp. 15-26. Available at: http://www.scitecresearch.com/journals/index.php/jprm/article/view/2153 (Accessed: 2May2024).