Artikel Jurnal
Levy, Sidney M.
Elsevier, 2012
Buku Teks
Friedbert Kind-Barkauskas, Architect Bundesverbend, Deutnchens Zementidustrie, Cologne
Birkhauser, 2002
Buku Referensi
American Institute of Steel Construction
American Institute of Steel Construction, 1980
Buku Referensi
American Institute of Steel Construction.
American Institute of Steel Construction, 1992
Buku Referensi