%0 Journal Article %A Hassanpour, Behrooz, Karami, Aiatollah %T Sources of Productivity Growth in Cereals Cultivation in Selected Provinces in Iran: Improving Farm Management or Technological Progress? %J Agricultural Economics Research %V 14 %N 2 %P 84-65 %D 2022 %R 10.30495/jae.2022.25024.2170 %U https://sanad.iau.ir/fa/Article/1160091