Pavlik, Cheryl
[publisher not identified], [date of publication not identified]
Buku Teks
Ladefoged, Peter, author
Blackwall, 2001
Buku Teks
Nothofer, Bernd, author
Martinus Nijhoff , 1975
Buku Teks
Anceaux, J.C. (Johannes Cornelis), 1920-
M. Nijhoff, 1965
Buku Teks
Cambridge University Press, 2005
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