Sabah, N., and Noor Alhuda Samir Salem. “Cyclic Partition for the Groups of PSL(2,41) and PSL(2,43)”. Al-Qadisiyah Journal of Pure Science, Vol. 26, no. 4, July 2021, pp. 27-30, doi:10.29350/qjps.2021.26.4.1351.