Solving Fully Intuitionistic Fuzzy Multi-Level Multi-Objective Fractional Optimization Problems via Two Different Approaches. - El Sayed, Mohamed A.; Elwahsh, Haitham; Hoxha, Julian; Khalifa, Tarek; Farahat, Farahat A.; Elsisy, Mohamed A.; Bukhari, Fawzy A. (Fractal & Fractional, 2025)