KOK, J. Distance strings of the vertices of certain graphs. Malaya Journal of Matematik, India, v. 10, n. 04, p. 343–353, 2022. DOI: 10.26637/mjm1004/005. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/131. Acesso em: 20 may. 2024.