. "NUMERICAL APPROACH OF NONLINEAR FRACTIONAL INITIAL VALUE PROBLEMS BY COMBINATION OF THE TWO METHODS : ADOMIAN DECOMPOSITION METHOD AND JACOBI SPECTRAL COLLOCATION A. S. ALGHAMDI, J.F. ALZAIDY, A.K. HUSSAIN", Journal of Fractional Calculus and Applications, 12, 3, 2021, -. doi: 10.21608/jfca.2021.308804