Mirams, D.G.
Kelly and Walsh Limited, 1940
Buku Teks
Bridgwood, Barry, author
Taylor and Francis, 2009
Buku Teks
Ball, Victoria Kloss, author
John Wiley & Sons, 1980
Buku Teks
Pile, John F.
Wiley, 2000
Buku Teks
edited by George Michell
Thames and Hudson, 1995
Buku Referensi