kamaI, S. sami, and S. J. Hamad. “Military and Economic Choices During the Era of Caliph Othman Bin Affan () (23-35 AH / 644-656 AD)”. Journal of Tikrit University for Humanities, vol. 32, no. 1, Jan. 2025, pp. 238-56, doi:10.25130/jtuh.32.1.2025.14.