Berman, Paul Schiff, 1966-
Cambridge University Press, 2012
Buku Teks
Kenichi Ohmae
Dow Jones-Irwin, 1987
Buku Teks
Gregory, James R.
McGraw-Hill, 2001
Buku Teks
Sonnevend, Julia
Oxford University Press, 2016
eBooks
edited by Abel Albet, Nuria Benach
Routledge, 2018
Buku Teks