Jaffar, Akram A., Sadiq J. Abass, and Summer S. M. Mukhtar. “The Stress Distribution on the Zygapophyseal Joint of Lumbar Vertebra by ANSYS Program”. Al-Khwarizmi Engineering Journal 6, no. 3 (September 1, 2010): 85–91. Accessed January 6, 2026. https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/505.