SHRUTHI, A.; BASAVARAJU, G. C.; YOGALAKSHMI, S.; VISHUKUMAR, M. 2-Metro Domination Number of Open Ladder Graph. International journal of health sciences, [S. l.], v. 6, n. S9, p. 3761–3765, 2022. Disponível em: https://sciencescholar.us/journal/index.php/ijhs/article/view/13457. Acesso em: 5 may. 2026.