MITESH J. PATEL; G. V. GHODASARA. On Permutation Labeling of Graphs. International Journal of Mathematics And its Applications, [S. l.], v. 9, n. 1, p. 27–33, 2021. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/98. Acesso em: 2 may. 2024.