1. Building code requirements for structural concrete (ACI 318-99) and commentary (ACI 318R-99);ACI Committee 318,1999
2. The design of deep beams in reinforced concrete;CIRIA Guide 2,1984
3. CSA Technical Committee on reinforced concrete design, A23.3-94 1994. Design of concrete structures. Ontario. Canada: Canadian Standards Association. p. 199.
4. CEB-FIP 1993. Model code 1990 for concrete structures. London, Comit_e Euro-International du B_eton, Laussane: Thomas Telford Services, Ltd., p. 437.
5. British Standards Institution (BSI) 1997. Structural use of concrete. Milton Keynes: BSI; BS8110: Part 1.