DAVVA, B.; LEOREANU-FOTEA, V. Triangular fuzzy sub –semihyper groups in –semihyper groups. Kuwait Journal of Science, [S. l.], v. 41, n. 1, 2014. Disponível em: https://journals.ku.edu.kw/kjs/index.php/KJS/article/view/228. Acesso em: 6 may. 2026.