American Institute of Steel Construction, 1998
Buku Referensi
American Institute of Steel Construction, 1995
Buku Teks
American Forest & Paper Association
American Society of Civil Engineers, 1996
Buku Referensi
Geschwindner, Louis F.
Prentice-Hall, 1994
Buku Teks
Rokach, Abraham J.
McGraw-Hill, 1991
Buku Teks