O`Connor, J.F., 1931-, author
Hants Gower, 1990
Buku Teks
Beason, Larry, author
Bredfors/ St. Martins, 2003
Buku Teks
Nicholson, Margaret, author
Oxford University Press, 1957
Buku Referensi
Hudson, Kenneth, author
MacMilan Press, 1980
Buku Referensi
Lacey, Andrew, author
[RIBA , ], 2004
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