Cohen, Morris R.
Open Court, 1961
Buku Teks
Kruft, Hanno-Walter, author
Princeton Architectural Press, 1994
Buku Teks
edited by C.D. Cowan and O.W. Wolters
Cornell University Press, 1976
Buku Teks
Ras, J. J., author
The Hague, 1968
Buku Teks
McDowell, W. H., author
Longman, 2002
Buku Teks