Jassam QT, Abd Al-majeed AT, Ali EH. AN ECONOMIC ANALYSIS OF SOME FACTORS AFFECTING IN MARKETING EFFICIENCY OF DRY ONION CROP USING THE TOBIT REGRESSION MODEL. Iraqi J. Agric. Sci. [Internet]. 2022 Feb. 23 [cited 2024 May 6];53(1):180-6. Available from: https://jcoagri.uobaghdad.edu.iq/index.php/intro/article/view/1523