edited by Raven I. Mcdavid and Audrey R. Duckert
Foresman and Company,
Buku Teks
Jackson, Howard, 1945-
Routledge , 2002
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edited by Sylviane Granger, Magali Paquo
Oxford University press, 2012
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Hartmann, Reinhard R.K.
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Buku Referensi
Hartmann, Reinhard R.K.
Routledge, 1998
Buku Referensi