Griffith, W. Thomas
McGraw-Hill, 2012
Buku Teks
Kirkpatrick, Larry D.
Brooks/Cole Cengage Learning, 2010
Buku Teks
John D. Cutnell [and others]
John Wiley & Sons, 2015
Buku Teks
Kitaigorodsky, A.
Foreign Language, [Date of publication not identified]
Buku Teks
Hewtt, Paul G.
Addison- Wesley, 1997
Buku Teks