Bagnall, Philip M., author
Springer, 2012
eBooks
Novas, Himilce , author
A Plume Book, 2004
Buku Teks
Young, Bruce K., author
Bantam Dell, 2008
Buku Teks
Davis, Kenneth C., author
Perennial, 2004
Buku Teks
Crowe, Mary, author
MacIntyre Purcell Pub, 2010
Buku Teks