Sommerlad, Elizabeth, author
Australian National University Press, 1976
Buku Teks
IDP Education Australia, [1994]
Buku Referensi
Jakarta: Kedubes Australia, 1996,
Buku Referensi
edited by Tarquam McKenna, Marcelle Cacciattolo, Mark Vicars
Cambridge University Press, 2013
Buku Teks
Jenkinson, Josephine C.
Routledge, 1997
Buku Teks