compiled and edited by Elaine Cumming
Jossey-Bass, 1970
Buku Teks
Samsuridjal Djauzi, author
Kompas, 2005
Buku Teks
Stacey, Margaret
Routledge, 1988
Buku Teks
Baker, Sidney MacDonald, author
Contemporary Books, 2003
Buku Teks
Young, Caroline, author
Jones and Bartlett, 2011
Buku Teks