DAISY, K. J.; SABIBHA, R. S.; JEYANTHI , P.; YOUSSEF, M. Z. k-Product Cordial Labeling of Napier Bridge Graphs. Nepal Journal of Mathematical Sciences, [S. l.], v. 3, n. 2, p. 59–70, 2022. DOI: 10.3126/njmathsci.v3i2.49201. Disponível em: https://nepjol.info/index.php/njmathsci/article/view/49201. Acesso em: 3 may. 2024.