edited by Phyllis Hartnoll
Oxford University Press, 1951
Buku Referensi
Walker, David M.
Clarendon Press, 1980
Buku Teks
Johson, Bruce
Oxford University Press, 1987
Buku Teks
Walker, David M.
Clarendon Press, 1980
Buku Referensi
editor, Tom McArthur ; managing editor, Feri McArthur
Oxford University Press, 1992
Buku Referensi