ARUMUGAM, S.; RAJASINGH, I.; PUSHPAM, P. R. L. Characterization of a class of graphs with unique minimum graphoidal cover. Tamkang Journal of Mathematics, [S. l.], v. 34, n. 4, p. 317–326, 2003. DOI: 10.5556/j.tkjm.34.2003.234. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/234. Acesso em: 30 apr. 2024.