Ker, W.P.
Dover Publication, Inc., 1957
Buku Teks
Lange, Christian, author
Cambridge University Press, 2008
Buku Teks
(hapus1)
HarperCollins e-books, 2010
Buku Teks
edited by Thomas H Briggs, Max J. Herzberg, Emma Miller Bolenius
Mifflin , 1932
Buku Teks
Ruchs, Barbara
New York : Routledge , 2004
Buku Teks