Jassam, Q. T. ., Abd Al-majeed , A. T. ., & Ali, E. H. . (2022). AN ECONOMIC ANALYSIS OF SOME FACTORS AFFECTING IN MARKETING EFFICIENCY OF DRY ONION CROP USING THE TOBIT REGRESSION MODEL. IRAQI JOURNAL OF AGRICULTURAL SCIENCES, 53(1), 180-186. https://doi.org/10.36103/ijas.v53i1.1523