Zerayohannes, G. “THE USE OF SQUARE CROSS SECTIONS OF UNIT-LENGTH SIDE FOR THE ANALYSIS OF RECTANGULAR SOLID AND HOLLOW SECTIONS UNDER BIAXIALLY ECCENTRIC LOADS”. Zede Journal of Ethiopian Engineers and Architects, vol. 26, Jan. 2023, pp. 31-44, http://ejol.aau.edu.et/index.php/ZEDE/article/view/6587.