J. Jweeg, Muhsin, Shawkat J. Al-Tornachi, and Salah H. Abid-Aun. “Optimization of Light Weight Aircraft Wing Structure”. Journal of Engineering and Sustainable Development 12, no. 1 (March 1, 2008): 1–22. Accessed April 26, 2025. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1632.