Pepinsky, Harold E., editor
Oxford University Press, 1980
Buku Teks
Roger Matthews, editor
Routledge, 2001
Buku Teks
Crawford, Adam
Longman, 1998
Buku Teks
DeLeon-Granados, William, author
Northeastern University Press, 2000
Buku Teks
Crawford, Adam
Longman, 1998
Buku Teks