1. American Iron and Steel Institute (AISI). (1989). “Specification for the design of cold-formed steel structural members.” Dec. 11 1989 Addendum Rep. CF 89-1 Washington D.C.
2. American Iron and Steel Institute (AISI). (1990). “Commentary on the load and resistance factor design specification for cold-formed steel structural members.” Rep. CF 90-2 Washington D.C.
3. American National Standards Institute (ANSI). (1982). “Minimum design loads for buildings and other structures.” Rep. ANSI A58.1 New York N.Y.
4. Cold-formed steel structural members; CSA-S136-M89 . (1989). Can. Standards Assoc. Rexdale Ontario Canada.
5. Cold-formed steel structures code; Australian standard AS1538 . (1988). Standards Assoc. of Australia Sydney Australia.