Fowler, H. W. (Henry Watson), 1858-1933
A dictionary of modern English usage
New York Oxford University Press 1965
 Buku Referensi
Peters, Pam
The Cambridge guide to English usage
Cambridge University Press, 2006
 Buku Referensi
Stone, Linton
Tests in english structure and usage
Macmillan, 1970
 Buku Teks
Fowler, H. W. (Henry Watson), 1858-1933
A dictionary of modern English usage
Oxford University Press, 1950 ; 1952
 Buku Referensi
Fowler, H. W. (Henry Watson), 1858-1933
A dictionary of modern English usage
Oxford University Press, 1965
 Buku Referensi