Weis, Gregory L
Prentice Hall, 1996
Buku Teks
MacMillan Education Australia, 1995
Buku Teks
edited by Jonathan Gabe, Michael Calnan and Michael Bury
Routledge , 1991
Buku Teks
Helman, Cesil G., 1944-
Boston Wright, 1990
Buku Teks
Barry, Anne-Marie
SAGE Publications Ltd, 2016
Buku Teks