edited by Patricia A. Richard-Amato, Marguerite Ann Snow
Longman, 2005
Buku Teks
Jesness, Jerry, author
Corwin Press, 2004
Buku Teks
Parrot, Martin, author
Cambridge University Press, 2003
Buku Teks
Thornburn, Scott, 1950-, author
Cambridge University Press, 2017
Buku Teks
Stevick, Earl W.
Abingdon, 1967
Buku Teks