Kitaigorodsky, A.
Foreign Language, [Date of publication not identified]
Buku Teks
John D. Cutnell [and others]
John Wiley & Sons, 2015
Buku Teks
Seeger, Karlheinz
Springer-Verlag, 1989
Buku Teks
Burcham, W.E.
Longman , 1978
Buku Teks
Gueguen, Yves
Princeton University Press, 1994
Buku Teks