edited by Mildred F. Schamertz
McGraw-Hill, 1972
Buku Teks
Ojeda, Oscar Riera
Rockport Publishers, 1997
Buku Referensi
editors, George F. Thompson, Frederick R. Steiner
John Wiley & Sons, 1997
Buku Teks
Wright, Paul H.
John Wiley & Sons, 1989
Buku Teks
Thompson, Godfrey
The Architectural, 1973
Buku Teks