edited by Jan Fook
Allen & Unwin, 1996
Buku Teks
Mann, Steve, 1960-, author
Routledge, 2017
Buku Teks
Leininger, Madeleine M., author
McGraw-Hill , 2002
Buku Teks
edited by Christine Knott
Learning Matters, 2010
Buku Teks
Copley, Selina, author
Learning Matters, 2011
Buku Teks