MOHAMMED NAJIM ABD AL-SHAYBANY. THE NEGATIVE IMPACTS FOR THE TAXATION SYSTEM DETERIORATION IN THE LATE ABBASID AGES. European Journal of Humanities and Educational Advancements, [S. l.], v. 2, n. 9, p. 99-110, 2021. Disponível em: https://scholarzest.com/index.php/ejhea/article/view/1700. Acesso em: 24 jan. 2025.