Argyle, Barry.
Clarendon Press,, 1972
Buku Teks
Moorhouse, Frank, author
Angus & Robertson, 1973
Buku Teks
edited by Douglas Stewart and Nancy Keesing
Angus and Robertson, 1968
Buku Teks
Koea, Shonagh
Penguin Books, 1989
Buku Teks
McLaren, John
Ling Wah, 1989
Buku Teks