ABDALHUSSEIN, M. S. On a Fuzzy Completely Closed Filter with Respect of Element in a BH-algebra. Asian Journal of Applied Sciences, [S. l.], v. 5, n. 2, 2017. DOI: 10.24203/ajas.v5i2.4749. Disponível em: https://ajouronline.com/index.php/AJAS/article/view/4749. Acesso em: 16 jan. 2022.