Harvard Business Review Book, 1988
Buku Teks
Harvard Business School Press, 2001
Buku Teks
Clark, Peter, author
Routledge , 1994
Buku Teks
edited by Helina Melkas, Vesa Harmaakorpi
Springer, 2012
eBooks
Shapiro, Stephen M., author
McGraw-Hill, 2001
Buku Teks