Clark, Martin, author
Longman, 1998
Buku Teks
Bondanella, Peter, author
Cambridge university press, 2005
Buku Teks
Routledge, 1993
Buku Teks
Curthoys, Jean, 1947-, author
Routledge, 1997
Buku Teks
Anderson, Jon, 1973-, Author
Routledge, 2015
Buku Teks