@article{
  author = {Naimi-Sadigh, Ali, Sajedinejad, Arman},
  title = {Ranking suppliers in sustainable supply chain, using data envelopment analysis (Case study: Region Six Water & Wastewater Company of Tehran)},
  journal = {Modiriat-e- farda},
  year = {2019},
  volume = {17},
  number = {57},
  pages = {33-52},
  doi = {}
}