4Ralph M. Kramer. A Third Sector in the Third Millennium?[J] 2000,Voluntas: International Journal of Voluntary and Nonprofit Organizations(1):1~23 被引量:1
5Lester M. Salamon. The Nonprofit Sector at a Crossroads: The Case of America[J] 1999,Voluntas: International Journal of Voluntary and Nonprofit Organizations(1):5~23 被引量:1