Danbury : Lexicon Publications, Inc., 2004,
Buku Referensi
editor, Philip Babcock Gove
Merriam-Webster, 1993
Buku Referensi
edited by Susan M. Lloyd
Penguin Books, [date of publication not identified]
Buku Referensi
Sambrook, G.A., author
Longmans, Green, 1947
Buku Teks
Adam, J.H., author
上海译文出版社 : 朗文, 2002
Buku Referensi