VAIDYA, S.; DANI, N. A.; KANANI, K. K.; VIHOL, P. L. Cordial and 3-Equitable Labeling for Some Shell Related Graphs. Journal of Scientific Research, [S. l.], v. 1, n. 3, p. 438–449, 2009. DOI: 10.3329/jsr.v1i3.2227. Disponível em: https://banglajol.info/index.php/JSR/article/view/2227. Acesso em: 10 dec. 2022.