Harvard Business School Press, 2004
Buku Teks
Goulston, Mark, author
[American Management Association, ], 2013
eBooks
Adhika Dimas Perwita Budi Utomo, author
2008
UI - Skripsi (Open)
Duerr, Carl
Pan Books , 1973
Buku Teks
Whitehouse, Frank
Business Books , 1973
Buku Teks