References
- Drucker Peter F. “Behind Japan's Success,”. Harvard Business Review January-February, 1981; 59(3)72–81
- Howard Ann, Bray Donald W. “Career Motivation in Mid-Life Managers,” Paper presented at American Psychological Association Convention. Montreal, Canada, September 1980
- Levinson Harry. “When Executives Burn Out,”. Harvard Business Review May-June, 1981; 59(1)83–90