Butler, David
National University, 1972
Buku Teks
Gordon, Adam Lindsay
Angus & Robertson , 1979
Buku Teks
Thampapillai, Dilan
Oxford University Press, 2011
Buku Teks
Turner, Ian
Sun Books, 1968
Buku Teks
McConnochie, Keith
Social Science Press, 1988
Buku Teks