S. Mechee, M. et al. 2019. Haar Wavelet Technique for Solving Fractional Differential Equations with An Application. Journal of Al-Qadisiyah for Computer Science and Mathematics. 11, 1 (Jan. 2019), Math Page 70 – 79. DOI:https://doi.org/10.29304/jqcm.2019.11.1.461.