M. A. Marzook and N. R. Naim, “The Economic Aspects of the Islamic State in the Era of the Prophet According to the Roman Orientalist Constance Giorgio in His Book: A New Look at the Biography of the Messenger of God”, jhsss, vol. 6, no. 1, pp. 20–29, Jan. 2024, doi: 10.32996/jhsss.2024.6.1.3.