Kerbo, Harold R., author
McGraw-Hill, 2012
Buku Teks
Bellwood, Peter, author
Wiley Blackwell, 2013
Buku Teks
Alimi, Eitan Y., author
Oxford University Press, 2016
eBooks
Harvard Business School Press , 1995
Buku Teks
John Wiley & Son , 1996
Buku Teks