Stone, Linton
Macmillan, 1970
Buku Teks
edited by Tim Storrie and James Matson
Cassell , 1991
Buku Teks
Fowler, H. W. (Henry Watson), 1858-1933, author
New York Oxford University Press 1965
Buku Referensi
Peters, Pam, author
Cambridge University Press, 2006
Buku Referensi
Fowler, H. W. (Henry Watson), 1858-1933, author
Oxford University Press, 1950 ; 1952
Buku Referensi