Ajabshirchi, Y., Taki, M., Abdi, R., Ghobadifar, A., & Ranjbar, I. "Investigation of Energy Use Efficiency for Dry Wheat Production Using Data Envelopment Analysis (DEA) Approach; Case Study: Silakhor Plain" .e25090 , Journal of Agricultural Machinery, 1, 2, 2011, e25090. doi: 10.22067/jam.v1i2.11360