ON PROPER COLORING OF CORONA GRAPH, FAN GRAPH, AND BUTTERFLY GRAPH. International Journal of Food and Nutritional Sciences, [S. l.], v. 11, n. 7, p. 488–494, 2022. Disponível em: https://www.ijfans.org/index.php/Journal/article/view/6656. Acesso em: 12 aug. 2026.