A new approach for the enumeration of components of Digraphs over quadratic maps. Journal of Prime Research in Mathematics, [S. l.], v. 16, n. 2, p. 56 – 66, 2020. Disponível em: https://jprm.sms.edu.pk/index.php/jprm/article/view/160. Acesso em: 30 aug. 2025.