Harvard Bussiness School Press, 1990
Buku Teks
Kotter, John P., 1947-, author
The Free Press, 1982
Buku Teks
Westwood, Roberta, author
American Society for Training & Development, 2011
eBooks
Harvard Business School Press, 2003
Buku Teks
Koontz, Harold, author
McGraw-Hill , 1971
Buku Teks