%0 Journal Article %A hajian, mohamad mahdi, Taklif, Atefeh, Soltaninejad, Hamed %T 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 %J Modiriat-e- farda %V 21 %N 70 %P 75-96 %D 2023 %R 10.61186/mf.26857.21.70.75 %U https://rimag.ir/fa/Article/26857