I, Suleiman, Garba A.I, and Mustafa A. “ON SOME NON-DERANGED PERMUTATION: A NEW METHOD OF CONSTRUCTION”. International Journal of Research -GRANTHAALAYAH 8, no. 3 (March 31, 2020): 309–314. Accessed January 29, 2023. https://www.granthaalayahpublication.org/journals/granthaalayah/article/view/34_IJRG20_B03_3173.