Kim, Daniel H., author
Saunders, 2008
Multimedia
Essau, Cecilia A, Petermann, Franz, editor
Taylor & Francis Inc:, 2001
Buku Teks
Cecilia A Essau, Franz Petermann, editor
Taylor & Francis Inc, 2001
Buku Teks
Artikel Jurnal
edited by Cecilia A. Essau, Franz Petermann
Routledge, 2001
Buku Teks