1. Tubular members;Sherman,1992
2. Design guide for hollow structural section connections;Packer,1992
3. Construction with hollow steel sections;ComitéInternational pour le Dbveloppement et L'Etude de la Construction Tubulaire (CIDECT),1984
4. Structural welding code-steel;American Welding Society,1992
5. Cold formed steel design manual;American Iron and Steel Institute,1983