JASSAM, Q. T.; ABD AL-MAJEED , A. T.; ALI, E. H. AN ECONOMIC ANALYSIS OF SOME FACTORS AFFECTING IN MARKETING EFFICIENCY OF DRY ONION CROP USING THE TOBIT REGRESSION MODEL. IRAQI JOURNAL OF AGRICULTURAL SCIENCES, [S. l.], v. 53, n. 1, p. 180–186, 2022. DOI: 10.36103/ijas.v53i1.1523. Disponível em: https://jcoagri.uobaghdad.edu.iq/index.php/intro/article/view/1523.. Acesso em: 6 may. 2024.