Lee, Grossman
Amacom, 1974
Buku Teks
Kotter, John P., 1947-
Harvard Business School Press, 2002
Buku Teks SO
Emerson, Tricia
American Society for Training & Development, 2011
eBooks
Prentice-Hall, 2000
Buku Teks
Cowan, Stella Louise
[American Society for Training & Development Press, American Society for Training & Development Press], 2001
eBooks