S. LAKSHMINARAYANA; M. VISHUKUMAR. Lattice Labelling of a Graph. International Journal of Mathematics And its Applications, [S. l.], v. 4, n. 3 - A, p. 169–172, 2016. Disponível em: https://ijmaa.in/index.php/ijmaa/article/view/981. Acesso em: 3 jul. 2024.