edited by Jacqueline A. Kalley, Elna Schoeman, Marlene Burger
University of South Africa, 2005
Buku Teks SO
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
Pfeifer Gunter, Rolf Ramcke, Joachim Achtziger, Konrad Zilch
Birkhauser, 2001
Buku Referensi