Archipelago Press , 1998
Buku Teks
Odmark, John, editor
Amsterdam John Benjamins 1980
Buku Teks
Shepherd, Valerie
Routledge, 1994
Buku Teks
McLaughlin, Thomas
Harcourt Brace Javanovich, 1989
Buku Teks
Tomlinson, Carl M.
Allyn and Bacon, 2002
Buku Referensi