Arntz, Helmut
Press and Information Office of the Federal German, 1962
Buku Teks
Berlin : Media Consulta, 1993
Buku Teks
Arntz, Helmut
Media Consulta, 1962
Buku Teks
Korean Overseas Information Service
Korean Overseas Information Service, 2007
Buku Teks
Istambul : Ucar Grafik, 1998
Buku Referensi