S. G. SONCHHATRA; G. V. GHODASARA. Snakes Related Sum Perfect Square Graphs. International Journal of Mathematics And its Applications, [S. l.], v. 4, n. 3 - A, p. 157–168, 2016. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/980. Acesso em: 17 may. 2024.