ARUMUGAM, S.; BAGGA, J. GRACEFUL LABELING ALGORITHMS AND COMPLEXITY – A SURVEY. Journal of the Indonesian Mathematical Society, [S. l.], p. 1–9, 2012. DOI: 10.22342/jims.0.0.14.1-9. Disponível em: http://jims-a.org/index.php/jimsa/article/view/14. Acesso em: 7 may. 2024.