Yada T, T Nakayama and T Ueda (1995). “Efficiency Evaluation between Branch Offices Using Data Envelopment Analysis.” NTT R and D 44(7): 43-48.
Yada T, T Nakayama and T Ueda (1995). “Efficiency Evaluation between Branch Offices Using Data Envelopment Analysis.” NTT R and D 44(7): 43-48.