فهرس المقالات Cole T. المقاله 1 - A Backward Diffrention Formula For Third-Order Inttial or Boundary Values Problems Using Collocation Method 20.1001.1.25885723.2021.13.1.6.9 Gafar Timiyu Abosede Cole Khadeejah Audu Iranian Journal of Optimization , العدد 2 , السنة 13 , بهار 2021
