Bauer, Susan Wise, author
Elex Media Komputindo, 2012
Buku Teks
Hodges, Henry, author
Penguin Press, 1970
Buku Teks
Arnaoutoglou, Ilias
Routledge, 1998
Buku Teks
Hall, Jonathan M., auhtor
Wiley-Blackwell, 2014
Buku Teks
Martin, Thomas R.
Yale University Press, 1996
Buku Teks