WANG, TAO-MING; ZHANG, GUANG-HUI. On vertex magic total labeling of disjoint union of sun graphs. Utilitas Mathematica , [S. l.], v. 103, 2017. Disponível em: https://utilitasmathematica.com/index.php/Index/article/view/1222. Acesso em: 7 may. 2026.