HADI, Israa; H. AL KANANI, Iden. Generalized Heptagonal Membership Function for Fully Fuzzy Linear Fractional Programming Problems. Ibn AL-Haitham Journal For Pure and Applied Sciences, Baghdad, Iraq., v. 38, n. 1, p. 417–427, 2025. DOI: 10.30526/38.1.3596. Disponível em: https://jih.uobaghdad.edu.iq/index.php/j/article/view/3596. Acesso em: 13 mar. 2025.