Mahmood, S., Hamad, K., kareem‎. and Shex, A. 2021. Solution of Multi-order Fractional Differential Equation Based on Conformable Derivative by Shifted Legendre Polynomial. Cihan University-Erbil Scientific Journal. 5, 2 (Dec. 2021), 64-68. DOI:https://doi.org/10.24086/cuesj.v5n2y2021.pp64-68.