Van Beek, Steve, 1944-, author
Thames and Hudson, 1991
Buku Teks
Baker, Chris, author
Cambridge Press, 2007
Buku Teks
Toby Alice Volkman
Duke University Press, 2005
Buku Teks
Hofstede, Geert, author
McGraw-Hill, 2005
Buku Teks
Kachru, Yamuna, author
Routledge, 2008
Buku Teks