Ibrahim Muhammad, and Kazeem Olalekan Aremu. “Graph Coloring With Inversion in the Non-Deranged Permutations”. UMYU Scientifica 1, no. 2 (December 30, 2022): 109–114. Accessed November 23, 2024. https://scientifica.umyu.edu.ng/index.php/scientifica/article/view/120.