Williams, James, author
Routledge, 2000
Buku Teks
Carrol, David, author
Routledge , 1987
Buku Teks
Steuerman, Emilia
Routledge, 2000
Buku Teks
Kuper, Adam, author
Rajawali Pers, Rajagrafindo Persada, 2008
Buku Referensi
edited by David Ingram
Blackwell , 2002
Buku Teks