MAHMOOD, Mhanaa A.; JBARA, Osamah K. FUNCTION ESTIMTING THE COSTS IN DIYALA PROVINCE . Diyala Agricultural Sciences Journal , [S. l.], v. 8, n. 1, p. 134–147, 2016. Disponível em: https://journal.djas.uodiyala.edu.iq/index.php/dasj/article/view/1416. Acesso em: 29 mar. 2024.