Kordy, Labwa, and Saad Alfalluji. 2026. “ECONOMIC EFFICIENCY OF CORN CROP CULTIVATING (AL-NAHRAIN HYBRID) IN SALAHDIN AND KIRKUK GOVERNORATES IN AGRICULTURAL SEASON 2023”. IRAQI JOURNAL OF AGRICULTURAL SCIENCES 57 (6): 1718-30. https://doi.org/10.36103/a9v7r538.