Stoppard, Miriam
Darling Kindesley , 1991
Buku Teks
Carlson, Karen J., author
Harvard University Press, 1996
Multimedia
Carlson, Karen J., author
Harvard Universiy press , 1996
Buku Teks
Carlson, Karen J., author
1996
Multimedia
Donohue, Rebecca K., author
Appleton & Lange, 1999
Buku Teks