Proper coloring of Octopus graph, Cubic graph Barbell graph and Drum graph. International Journal of Food and Nutritional Sciences, [S. l.], v. 11, n. 7, p. 154–166, 2022. Disponível em: https://www.ijfans.org/index.php/Journal/article/view/6630. Acesso em: 13 aug. 2026.