1. Eurocode 4, ENV 1994-1-1. Design of composite steel and concrete structures. Part 1.1. General rules and rules for buildings. London: British Standards Institution; 1994.
2. Building code requirements for reinforced concrete and commentary. American Concrete Institute. ACI 318-02/ACI 318R-02, ACI Committee 318. Detroit; 2002.
3. Load and resistance factor design specification for structural steel buildings. Chicago: American Institute of Steel Construction; 1999.
4. Strength of eccentrically loaded slender steel tubular columns filled with high-strength concrete;Rangan;ACI Struct J,1992
5. Axially loaded concrete-filled steel tubes;Schneider;J Struct Eng,1998