Heermann, Barry
McGraw-Hill, 1997
Buku Teks
Heng, Paul, author
Prentice-Hall, 2001
Buku Teks
Harvard Business School Press, 2004
Buku Teks
Rothwell, William J., 1951-, author
American Management Association;, 2010
eBooks
Finkelstein, Sydney, author
Intermasa, 2003
Buku Teks