edited by Catherine Spooner, Emma McEvoy
Routledge, 2007
Buku Teks
Bachman, Richard, author
Dutton, 1996
Buku Teks
Arswendo Atmowiloto, author
Gaya Favorit , 1981
Buku Teks
Harris, robert, author
Gramedia Pustaka Utama, 2009
Buku Teks
Parish, James Robert, author
Mizan Learning Center, 2006
Buku Teks