1. CIDECT monograph no. 6. (1986). “The strength and behavior of statically loaded welded connections in structural hollow sections.” Comite International pour le Development et I'etude de la Construction Tubulaire CIDECT Corby England.
2. Cold‐formed steel structures code . (1988). “Australian standard AS 1538.” Standards Association of Australia Sydney Australia.
3. Common unified code of practice for steel structures Draft . (1983). “Eurocode 3.” Commission of the European Communities (EC) Brussels Belgium.
4. European recommendation for the design of light gauge steel members No. 49 . (1987). 1st Ed. “Design of cold‐formed steel sheeting and sections ” European Convention for Constructional Steelwork (ECCS) Brussels Belgium.