فهرس المقالات Majid Tavassoli المقاله 1 - Numerical Solution of a SIR Fractional Model of the Distribution of Computer Viruses Using Dickson Polynomials D. Shirani M. Tavassoli ‎Kajani‎ S. Salahshour International Journal of Industrial Mathematics , العدد 4 , السنة 13 , تابستان 2021