al-Jubouri, Saad, and سعد. 2025. “Human Factors and Their Impact on the Movement of Goods and Their Prices in the First Abbasid Era (132-247 A.H. / 750-862 A.D.)”. Journal of Education for the Humanities 3 (10):433-54. https://ojs.uomosul.edu.iq/index.php/jeh/article/view/5090.