H. N., Onah, Ike C.C., and Nwoji C.U. “Flexural - Torsional Buckling Analysis of Thin Walled Columns Using the Fourier Series Method”. International Journal of Advanced Engineering Research and Science 4, no. 3 (December 3, 2020). Accessed July 22, 2024. https://journal-repository.com/index.php/ijaers/article/view/2820.