AQEEL, R. M.; NASSER, A. A. On Fuzzy Pre-Λ-Sets and Fuzzy Semi-Λ- Sets. Electronic Journal of University of Aden for Basic and Applied Sciences, [S. l.], v. 4, n. 1, p. 139–146, 2023. DOI: 10.47372/ejua-ba.2023.1.229. Disponível em: https://ejua.net/index.php/EJUA-BA/article/view/229. Acesso em: 19 apr. 2024.