@article{
  author = {Shoul, Abbas, yaghoubipoor, ali, abbaslo, laleh},
  title = {Provide a multi-objective mathematical programming model for supplier selection in discounted status},
  journal = {Modiriat-e- farda},
  year = {2019},
  volume = {18},
  number = {59},
  pages = {19-30},
  doi = {}
}