Pine, Jerome
McGraw-Hill, 1972
Buku Teks
John D. Cutnell [and others]
John Wiley & Sons, 2015
Buku Teks
Kitaigorodsky, A.
Foreign Language, [Date of publication not identified]
Buku Teks
Jones, Edwin R.
Addison-Wesley , 1992
Buku Teks
Costa, Giovanni
Springer, 2012
eBooks