@article{
  author = {Pourmokhtar, E., Ghaderzadeh, H.},
  title = {Analysis of Wheat Crop Cost Structure Using Translog Function"A Case of Kurdistan Province"},
  journal = {Bi-quarterly Journal of  development economics and planning},
  year = {2013},
  volume = {2},
  number = {1},
  pages = {85-104},
  doi = {}
}