@article{
  author = {hajian, mohamad mahdi, Taklif, Atefeh, Soltaninejad, Hamed},
  title = {A model for interaction of supervisory institutions and price reporting institutions to improve the efficiency of the crude oil pricing system in oil markets using classical data-base theory},
  journal = {Modiriat-e- farda},
  year = {2023},
  volume = {21},
  number = {70},
  pages = {75-96},
  doi = {10.61186/mf.26857.21.70.75}
}