1. American Concrete Institute Building code requirements for reinforced concrete, ACI 318-95, 99, 02, Detroit, Michigan, 1995, 1999, 2002
2. International conference on building officials;Uniform Building Code (UBC),1997
3. Building Seismic Safety Council NEHRP recommended provisions for the development of seismic regulation for new buildings, Part 1 and 2, provisions and commentary, Washington, DC: FEMA; 1994, 1997
4. Portland Cement Association Notes on ACI 318-99, 02 building code requirements for structural concrete, Skokie, Illinois, 1999, 2002
5. Computers and Structures Inc SAP2000, 1997