KADHIM , Zuhal R; FARIS, Ahmed M. 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, Kufa, Najaf, IRAQ, v. 20, n. 00, p. 77–90, 2024. DOI: 10.36325/ghjec.v20i00.16723. Disponível em: https://journal.uokufa.edu.iq/index.php/ghjec/article/view/16723. Acesso em: 3 oct. 2026.