edited by Achim Rohde, Christina von Braun and Stefanie Schuler-Springorum
Taylor & Francis Group, 2018
Buku Teks
Weeks, Jeffrey
Longman, 1994
Buku Teks SO
Bone, Hugh A., author
University of Washington Press, 1958
Buku Teks
Klein, Rudolf, author
Longman, 1983
Buku Teks
edited by Francis E. Rourke
Little, Brown, 1978
Buku Teks