Winkowski, Fred
Pavilion,, 1994
Buku Teks
Campbell-Kelly, Martin, author
Clarendon Press, 1989
Buku Teks
Ilbert, Courtenay
Oxford University Press , 1947
Buku Teks
Williamson, James A., author
Macmilan and Co,, 1950
Buku Teks
Summerson, John
Penguin Books, 1958
Buku Teks