KAYS GHAZAL, D.; AZIZ, I.; KHUDHIR, M.; SULTAN, M. Estimating the Production and Cost Functions of Wheat Crop in Nineveh Governorate During the Agricultural Season 2005- 2006. TANMIYAT AL-RAFIDAIN, [S. l.], v. 32, n. 98, p. 190–207, 2010. DOI: 10.33899/tanra.2010.161896. Disponível em: https://tanmiyat.uomosul.edu.iq/index.php/tanmiyat/article/view/30180. Acesso em: 8 sep. 2025.