R. PONRAJ; S. SATHISH NARAYANAN; A. M. S. RAMASAMY. Total Mean Cordiality of Umbrella, Butterfly and Dumbbell Graphs. Jordan Journal of Mathematics and Statistics, [S. l.], v. 8, n. 1, p. 59–77, 2025. Disponível em: https://jjms.yu.edu.jo/index.php/jjms/article/view/1071. Acesso em: 10 sep. 2025.