McColvin, Eric, author
Longmans, Green and Co., 1946
Buku Teks
Saunders, Ann, author
Phaidon, 1984
Buku Referensi
Mawer, A., author
At The University Press, 2014
Buku Teks
Gale, Maggie Barbara
Routledge, 1996
Buku Teks
London : Chatto & Windus
Majalah, Jurnal, Buletin