Modern english
Buku Teks
Perrin, Porter G.
Writer's guide and index to English
Scott, Foresman, 1950
Buku Teks SO
Gramley, Stephan
A survey of modern English
Routledge , 1992
Buku Teks SO
Fowler, H. W. (Henry Watson), 1858-1933
A dictionary of modern English usage
Oxford University Press, 1983
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Christ, Henry
Modern english in action
Lexington, 1982
Buku Teks