TY  - JOUR
AU  - Hosseinzadeh, Farhad
AU  - Moghaddas, Zohreh
TI  - Benchmarking Marketing Productivity Using Data Envelopment Analysis: a Modified Approach
JO  - Journal of System Management
VL  - 3
IS  - 1
SP  - 31
EP  - 38
PY  - 2017
DO  - 
ER  -