Hughes, Richard, author
Thames and Hudson, 1991
Buku Referensi
Crosby Lockwood Staples, 1978
Buku Teks
The Steel Construction Institute ; edited by Graham W. Owens, Peter R. Knowles with the assistance of an advisory committee, chaired by Patrick J. Dowling
Blackwell Scientific Publications, 1992
Buku Referensi
Cooper, B. T., author
Binarupa Aksara, 1989
Buku Teks
Walker, Rodger
An Arbor Science, 1972
Buku Teks