Cremeans, Charles D
Frederck A. Praeger, 1963
Buku Teks
Dodds, Klaus
Prentice-Hall, 2000
Buku Teks
Evans, Gareth, author
Melbourne Univer, 1991
Buku Teks
Thomson, Charles A.
Indiana University Press, 1963
Buku Teks
Harrison, W.E.C., author
Oxford University Press, 1957
Buku Teks