SANTHAKUMARAN, A.; JEBARAJ, T. THE UPPER DOUBLE GEODETIC NUMBER OF A GRAPH. Malaysian Journal of Science, [S. l.], v. 30, n. 3, p. 217–221, 2011. DOI: 10.22452/mjs.vol30no3.7. Disponível em: http://mjs.um.edu.my/index.php/MJS/article/view/7249. Acesso em: 5 may. 2024.