Al-Shammari, Ashraq Ali Hussain, and Abbas Ali Hussein Al-Shammari. “Historical Materialism, According to The Views of The Philosophers Marx And Engels, The Negro Revolution As An Example”. International Journal of Psychosocial Rehabilitation 24, no. 7 (September 30, 2020): 2281–2286. Accessed March 3, 2026. https://psychosocial.com/index.php/ijpr/article/view/9764.