The Wiener index and spectrum of the nil clean graph of a finite commutative ring. Journal of the Nigerian Society of Physical Sciences, [S. l.], v. 8, n. 4, p. 3679, 2026. DOI: 10.46481/jnsps.2026.3679. Disponível em: https://journal.nsps.org.ng/index.php/jnsps/article/view/3679. Acesso em: 23 sep. 2026.