McCalman, Janet
Melbourne University Press, 1985
Buku Teks
Richmond-Abbott, Marie
McGraw-Hill, 1992
Buku Teks
Zanker, Paul, author
Harvard University Press, 2001
Buku Teks
Attenborough, David
BBC Worldwide Limited, 2005
Multimedia
Attenborough, David
BBC Worldwide Limited, 2005
Multimedia