Mary Louise Gill; Pierre Pellegrin
BlackWell Publishing, 2005
Buku Teks
Zeller, Eduard, 1814-1908, author
Meridian Books, 1960
Buku Teks
Armstrong, A.H., author
Newman Press, 1949
Buku Teks
Burnet, John
Meridian Books, 1957.
Buku Teks
edited by Julia Annas
Clarendon Press , 1985
Buku Teks