University of Queensland Press, 1992
Buku Referensi
Hope, A.D. (Alec Derwent), 1907-2000
Oxford University Press, 1992
Buku Teks
Lock, Fred
Oxford University Press, 1977
Buku Referensi
Johnston, Grahame
Oxford University Press, 1970
Buku Teks
Oxford University Press, 1981
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