John D. Cutnell [and others]
John Wiley & Sons, 2015
Buku Teks
Kitaigorodsky, A.
Foreign Language, [Date of publication not identified]
Buku Teks
Pine, Jerome
McGraw-Hill, 1972
Buku Teks
Mills, Robert
W.H. Freeman, 1994
Buku Teks
Walker, James S.
Addison-Wesley, 2010
Buku Teks