Michalos, James, author
Macmillan, 1965
Buku Teks
Au, Tung, 1923-, author
Prentice-Hall, 1965
Buku Teks
Bittnar, Zdenek, author
ASCE, 1996
Buku Teks
Ketter, Robert L., author
McGraw-Hill, 1979
Buku Teks
Hibbeler, R. C., author
Prentice-Hall, 2002
Buku Teks