HELMI, Monika Rianti; SY, Syafrizal; NAZRA, Admi; MUHAFZAN; HANIFA, Nurul; ALFIANY, Noverina. SOFT GRAPHS OF THE BARBELL STAR GRAPH. Jurnal Matematika UNAND, [S. l.], v. 14, n. 4, p. 366–375, 2025. DOI: 10.25077/jmua.14.4.366-375.2025. Disponível em: https://jmua.fmipa.unand.ac.id/index.php/jmua/article/view/1489. Acesso em: 5 nov. 2026.