1. AASHTO. (2012). AASHTO LRFD bridge design specifications. Washington, DC: American Association of State Highway and Transportation Officials. 505 pp.
2. ACI318-63. (1963). Building code requirements for reinforced concrete. Detroit, MI: American Concrete Institute. 144 pp.
3. ACI318-11. (2011). Building code requirements for reinforced Concrete. Detroit, MI: American Concrete Institute, 503 pp.
4. ASTM A615/A615M-09b. (2009). Standard specification for deformed and plain carbon-steel bars for concrete reinforcement. West Conshohocken, PA: ASTM International, 6 pp.