TY  - JOUR
AU  - Ayagh, Zahra
AU  - Farkhondeh, Mahsa
AU  - Malek Akhlagh, Esmaeil
TI  - The Role and Status of Upgrading Techniques in Global Value Chains
JO  -  Roshd -e- Fanavari
VL  - 9
IS  - 34
SP  - 1
EP  - 10
PY  - 2013
DO  - 
ER  -