Naif Al-Khazaraji, A., Ali Al-Rabii, . S. ., & Shamkhi Al-Khazaali, H. (2016). VALIDATION OF DERIVED EQUATION USING ENERGY TECHNIQUE FOR CALCULATING THE CRITICAL BUCKLING LOAD FOR INTERMEDIATE AND LONG COLUMNS. Journal of Engineering and Sustainable Development, 20(4), 217-237. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/608