Mansion, J.E., author
London Harrap 1972-1980
Buku Referensi
Klatt, Edmund
Berlin Langenscheidt KG. Verlag buchhandlung 1961
Buku Referensi
Oxford , Clarendon Press
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Marchant, James Robert Vernam, 1853-1936, editor
New York Funk & Wagnalls [t.th.]
Buku Teks
edited by Marie-Helene Correard
Oxford University Press, [Date of publication not identified]
Buku Referensi