imran, zainab, and Mazin H. Suhhiem. “Legendre Operational Differential Matrix for Solving Fuzzy Differential Equations With Trapezoidal Fuzzy Function Coefficients”. Journal of Kufa for Mathematics and Computer 11, no. 2 (May 19, 2025): 31–48. Accessed November 3, 2026. https://journal.uokufa.edu.iq/index.php/jkmc/article/view/16199.