SOME GRAPH PROPERTIES OF r1- NONDERANGED PERMUTATION GRAPHS. FUDMA JOURNAL OF SCIENCES, [S. l.], v. 9, n. 6, p. 182–185, 2025. DOI: 10.33003/fjs-2025-0906-3546. Disponível em: http://www.fjsadmin.fudutsinma.edu.ng/index.php/fjs/article/view/3546. Acesso em: 12 sep. 2025.