edited by Astri Suhrkel and Lela Garner Noble
Frederick A. Praeger, 1977
Buku Teks
Jeong, How-Won, author
Ashgate, 2000
Buku Teks
edited by Charles Webel and Jorgen Johansen
Routledge, 2012
Buku Teks
Bettina E. Schmidt, Ingo W. Schroder, editor
Routlegde , 2001
Buku Teks
Dan Landis, Rosita D. Albert, editor
[Springer, ], 2012
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