“Red Terror Historical Study of the Extraordinary Committee of the All-Russian (The Cheka) 1917-1922”. Journal of Studies in History and Archeology, no. 77 (January 11, 2023): 524–571. Accessed November 22, 2024. https://jcoart.uobaghdad.edu.iq/index.php/2075-3047/article/view/446.