7Morris, S. Defining the Nonprofit Sector: Some Lessons from History[ J]. Voluntas: International Journal of Voluntary and Nonprofit Organizations, 2000,11 ( 1 ).
8Rawls, J. R. , and Nelson, O. T. , Jr. Characteristics Associated with Preferences for Certain Managerial Positions[ J]. Psychological Reports, 1975.
9Rawls, J. R., Ullrich, R. A., and Nelson, O. T., Jr. A Comparison of Managers Entering or Reentering the Profit and the Nonprofit Sectors[J]. Academy of Management Journal,1975,18 (3).
