SAMAL, R. K; MISHRA, D. Further Results on Sum *Number and Mod Sum* Number of Graphs. International Journal of Computer Sciences and Engineering, [S. l.], v. 6, n. 8, p. 15–19, 2018. DOI: 10.26438/ijcse/v6i8.1519. Disponível em: https://ijcse.isroset.org/index.php/j/article/view/3114. Acesso em: 2 feb. 2026.