@article{
  author = {azizzadeh, fariba, jahani, nader},
  title = {Qualitative study of issues and problems of Tamarchin informal border crossing of Piranshahr and provide suitable solutions to improve its performance .},
  journal = {Social Sciences Quarterly},
  year = {2019},
  volume = {13},
  number = {1},
  pages = {291-320},
  doi = {}
}