The radio D-distance in harmonic mean number of a Quadrilateral snake graph and Doublequadrilateral snake graph. International Journal of Food and Nutritional Sciences, [S. l.], v. 11, n. 12, p. 1003–1010, 2022. Disponível em: http://www.ijfans.org/index.php/Journal/article/view/12927. Acesso em: 26 aug. 2026.