Generalization of Counter Example of B. AlSPACH. JOURNAL OF UNIVERSITY OF BABYLON for Pure and Applied Sciences, [S. l.], v. 28, n. 2, p. 207–213, 2020. Disponível em: https://journalofbabylon.com/index.php/JUBPAS/article/view/3115. Acesso em: 21 apr. 2025.