Nutt, Gary J., author
Prentice-Hall, 1992
Buku Teks
Grisham, John, author
Random House Audio, 2014
Buku Teks
Casson, Lionel, author
British Museum Press, 1994
Buku Teks
Silverstone, Paul H., author
Ian Allan ltd, 1984
Buku Referensi
Choi, Wan Gee, author
Ewha Womans University Press, 2006
Buku Teks