Finley, M.I.
Penguin Books, 1985
Buku Teks
Bone, Robert G., author
Littlefield, Adam, 1957
Buku Teks
edited by John Miksic
Archipelago Press, [date of publication not identified]
Buku Teks
Caldwell, Wallace Everett, author
Holt, Rinehart and Winston, 1963
Buku Teks
Beck, Roger, author
Blackwell Publishing, 2007
Buku Teks