فهرس المقالات Mohsen Rostamy-Malkhalifeh المقاله 1 - A goal programming procedure for ranking decision making units in DEA Farhad Hosseinzadeh-Lotfi Mohammad Izadikhah R. Roostaee Mohsen Rostamy-Malkhalifeh Theory of Approximation and Applications , العدد 1 , السنة 7 , بهار 2013 المقاله 2 - Application of variational iteration method for solving singular two point boundary value problem Mohsen Rostamy-Malkhalifeh H. Saleh Theory of Approximation and Applications , العدد 1 , السنة 9 , زمستان 2015