FADEL, B. The duties and powers of ministers in the last Abbasid period (512-656 A.H. / 1118-1258 A.D.). Journal of Education for the Humanities , [S. l.], v. 2, n. 5, p. 191–210, 2022. DOI: 10.33899/jeh.2022.178827. Disponível em: https://edusj.uomosul.edu.iq/index.php/jeh/article/view/43313. Acesso em: 10 sep. 2025.