[1]- Black, J. T., and Kohser, R. A., 2019, DeGarmo’s Materials and Processes in Manufacturing, 13th Edition.
[2]- American Society for Testing and Materials (ASTM D)
[3]- International Standard ISO 22762-1:2010
[4]- AASHTO LRFD Bridge Design Specifications, Customary U.S. Units, 7th edition
[5]- European Standard EN 1337-3:2005
[6]- http://WWW.Kohranggroup.com
)