imran zainab, Suhhiem MH. Legendre Operational Differential Matrix for Solving Fuzzy Differential Equations with Trapezoidal Fuzzy Function Coefficients. Jour. Kufa Math. Comp. [Internet]. 2025 May 19 [cited 2026 May 1];11(2):31-48. Available from: https://journal.uokufa.edu.iq/index.php/jkmc/article/view/16199