%0 Journal Article
%A Ayagh, Zahra, Farkhondeh, Mahsa, Malek Akhlagh, Esmaeil
%T The Role and Status of Upgrading Techniques in Global Value Chains
%J  Roshd -e- Fanavari
%V 9
%N 34
%P 1-10
%D 2013
%R 
%U https://rimag.ir/fa/Article/20058