On Triangular Secure Domination Number. InPrime: Indonesian Journal of Pure and Applied Mathematics, [S. l.], v. 2, n. 2, p. 105–110, 2020. DOI: 10.15408/inprime.v2i2.15996. Disponível em: https://journal.uinjkt.ac.id/inprime/article/view/15996. Acesso em: 27 oct. 2025.