共 52 条
- [1] Abd El-Hamied S. A., 2015, Journal of Agriculture and Veterinary Science, DOI [10.9790/2380-08110109, DOI 10.9790/2380-08110109]
- [5] Bogetoft P, 2011, INT SER OPER RES MAN, V157, P1, DOI 10.1007/978-1-4419-7961-2
- [7] Coelli T., 2005, INTRO EFFICIENCY PRO