Oxford University Press, 1942
Buku Referensi
edited by T.F. Hoad
Oxford University Press, 1996
Buku Referensi
Skeat, Walter W., author
The Clarendon Press, 1948
Buku Referensi
London, 1982
Buku Referensi
Fowler, H. W. (Henry Watson), 1858-1933, adapter
Clarendon Press, 1954
Buku Referensi