1. Specifications for highway bridges (with explanation). Japan Road Association. 2002 [in Japanese].
2. Third Edition. 2005 interim revisions. AASHTO LRFD bridge design specifications. American Association of State Highway and Transportation Officials; 2005.
3. BS 5400-2004, Code of practice for design of steel bridges, British Standards Institution; 2004.
4. Schmidt LA, Goble G, Fox RL, Lasdon L, Moses F, Razani R. Structure synthesis, Case Institute of Technology, Summer Notes. 1, Ohio, 1965.
5. Safety of optimally designed structures lick cylinders and plates;Pantaik;Computers & Structures,1980