Gramley, Stephan
A survey of modern english
Routledge, 2004
 Buku Teks SO
Frank, Marcella
Modern english : a practical reference guide
Prentice-Hall, 1972
 Buku Teks SO
Crowell, Thomas Lee
Index to modern English
McGraw-Hill, 1987
 Buku Referensi
Fowler, H. W. (Henry Watson), 1858-1933
A dictionary of modern English usage
Oxford University Press, 1983
 Buku Referensi
Fowler, H. W. (Henry Watson), 1858-1933
A dictionary of modern English usage
Oxford University Press, 1950 ; 1952
 Buku Referensi