Z. R. Kadhim and A. M. Faris, “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 Jour. Eco. Admini. Sci., vol. 20, no. 00, pp. 77–90, Jul. 2024, doi: 10.36325/ghjec.v20i00.16723.