فهرس المقالات Laleh Hooshangian المقاله 1 - General Solution for Fuzzy Linear Second Order Differential Equation Using First Solution Laleh Hooshangian Theory of Approximation and Applications , العدد 1 , السنة 12 , زمستان 2018 المقاله 2 - Numerical Solution of a New Type Fuzzy Nonlinear Volterra Integral Equations 20.1001.1.25382217.2022.16.1.10.6 Laleh Hooshangian Theory of Approximation and Applications , العدد 1 , السنة 16 , زمستان 2022