1. AISC. 1986. “Code of Standard Practice for Steel Buildings and Bridges”. Chicago, Ill.: American Institute of Steel Construction.
2. Bjorhovde , R. 1972. “Deterministic and Probabilistic Approaches to the Strength of Steel Column”. Pennsylvania: Lehigh University. Ph.D. Dissertation,
3. Experimental Study of Thin‐Walled Steel Box Columns
4. Itoh , H. 1984. “Ultimate Strength Variations of Structural Steel Members”. Nagoya University. Thesis, Doctor of Eng.