MR.K.SURESH KUMAR, SRI.O. SURESH, and DR.E.V. RAGHAVA RAO,. 2021. “BUCKLING ANALYSIS OF CONCRETE FILLED STEEL TUBE COLUMNS”. International Journal of Innovations in Engineering Research and Technology 5 (2): 1-5. https://repo.ijiert.org/index.php/ijiert/article/view/1452.