Investigation of the Relationship between Taking Power and Wealth of Barmakian in the Abbassi Caliphate System with their Fate. Mediterranean Journal of Social Sciences, [S. l.], v. 6, n. 6 S6, p. 126, 2015. Disponível em: https://www.richtmann.org/journal/index.php/mjss/article/view/8479.. Acesso em: 25 dec. 2024.