hassan, y. f. (1973). the arabs and the sudan: From the seventh to the early sixteenth century. khartoum: khartoum university press.
استشهاد بنمط شيكاغوhassan, yusuf fadl. The Arabs and the Sudan: From the Seventh to the Early Sixteenth Century. khartoum: khartoum university press, 1973.
MLA استشهادhassan, yusuf fadl. The Arabs and the Sudan: From the Seventh to the Early Sixteenth Century. khartoum: khartoum university press, 1973.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.