AHMED M. NAJI; N. D. SONER. Monopoly Free and Monopoly Cover in Graphs. International Journal of Mathematics And its Applications, [S. l.], v. 4, n. 2 - A, p. 71–77, 2016. Disponível em: https://ijmaa.in/index.php/ijmaa/article/view/1007. Acesso em: 3 jul. 2024.