Rahman Al-Tikriti, Harith Abdul, and Moataz Hamid Khalaf. “The Second International Workers Association 1889-1914 AD (A Study in the Causes of Emergence and Collapse)”. Journal of Tikrit University for Humanities 25, no. 5 (May 20, 2018): 312–350. Accessed August 31, 2026. https://jtuh.org/index.php/jtuh/article/view/681.