Sinha, S. N.
Tata McGraw-Hill, 1996
Buku Referensi
Baker, A.L.L.
Cement and Concrete Association, 1970
Buku Teks
Forsyth, Benjamin
McGraw-Hill, 1971
Buku Teks
American Concrete Institute. Committee 317.
American Concrete Institute, 1965
Buku Referensi
Wang, Chu-Kia
Harper and Row , 1985
Buku Teks