Thomas Telford, 1997
Buku Teks
Stiffler, A. Kent, author
McGraw-Hill, 1992
Buku Teks
Baumeister, Theodore
McGraw-Hill, 1958
Buku Referensi
editor, Theodore Baumeister, Eugene A. Avallone
McGraw-Hill, 1978
Buku Referensi
Baumeister, Theodore
Mcgraw-Hill, 1967
Buku Referensi