TY  - JOUR
AU  - Kiany, H.
AU  - GHodrati, H.
TI  - Distinction Between The Inter-Group And Intera-Group Efficiency Using Data Envelopment Analysis (DEA)
JO  - Future study Management
VL  - 14
IS  - 55
SP  - 71
EP  - 81
PY  - 2002
DO  - 
ER  -