MOHAMMED, H. B. Hajar B. M. "Investment and its Role in Improving the Efficiency of the Agricultural Sector in Iraq" (Modern Agriculture in Najaf as a Model). Al-Kitab Journal for Human Sciences, [S. l.], v. 9, n. 16, p. 109–130, 2026. DOI: 10.32441/kjhs,9.16.07. Disponível em: https://isnra.net/ojs/index.php/KJHS/article/view/1736. Acesso em: 16 oct. 2026.