American Forest & Paper Association
American Society of Civil Engineers, 1996
Buku Referensi
American Institute of Steel Construction, 1998
Buku Referensi
Rokach, Abraham J.
McGraw-Hill, 1991
Buku Teks
editor, Akbar R. Tamboli
McGraw-Hill, 1997
Buku Referensi
by Edward S. Hoffman ... [et al.]
Chapman & Hall, 1996
Buku Teks