1. Atkinson, J. (1957). Motivational determinants of risk-taking behavior. Psychological Review, 64, 365.
2. Brooten, D., Hayman, L., & Naylor, M. (1988). Leadership for change: An action guide for nurses (2nd ed.). Philadelphia: Lippincott.
3. Goode, W., & Fowler, I. (1949). Incentive factors in a low morale plant. American Sociological Review, 14, 618–624.
4. Haynes, W., Massie, J., & Wallace, M. Jr. (1975). Management: Analysis, concepts, and cases. Englewood Cliffs, NJ: Prentice-Hall.
5. Hersey, P., & Blanchard, K. (1988). Management of organizational behavior: Utilizing human resources (5th ed.). Englewood Cliffs, NJ: Prentice Hall.