- Public welfare--United States (2)
- Charities--United States (1)
- Human services--United states (1)
- Income maintenance programs--United States (1)
- NPO (1)
- Non-governmental organizations (1)
- Non-governmental organizations--Employees (1)
- Nonprofit organizations (1)
- Nonprofit organizations--Employees (1)
- Nonprofit organizations--Government policy (1)
- Nonprofit organizations--United States (1)
- Social service (1)
- Social workers (1)
- Volunteers (1)
- Welfare state (1)
- アメリカ合衆国 (1)
- 公企業--アメリカ合衆国 (1)
- 公共事業--アメリカ合衆国 (1)
- 公益法人 (1)
- 社会福祉 (1)