KAIJAE, Waraphorn; POUNGSUMPAO, Polatip; ARAYARANGSI, Saranya; IAMPAN, Aiyared. UP-ALGEBRAS CHARACTERIZED BY THEIR ANTI-FUZZY UP-IDEALS AND ANTI-FUZZY UP-SUBALGEBRAS. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 36, p. 667–692, 2016. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6532. Acesso em: 27 aug. 2026.