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