Kadhim , Z.R. and Faris, A.M. 2024. Calculating Costs and Marketing Margins for Summer Vegetable Crops Under the Protected Agriculture System in Baghdad Governorate for the Agricultural Season 2022/2023. Al-Ghary Journal of Economic and Administrative Sciences. 20, 00 (Jul. 2024), 77–90. DOI:https://doi.org/10.36325/ghjec.v20i00.16723.