social work
dingdong chanにより

1. improve the quality of life
1.1. research
1.2. practice
2. theories
2.1. economics,
2.2. education
2.3. sociology
2.4. medicine
2.5. philosophy
2.6. politics
2.7. psychology
3. roots
3.1. struggle of society
3.1.1. poverty
3.1.2. resultant problems
4. perform interventions
4.1. research
4.1.1. human development
4.1.2. social policy
4.1.3. public administration
4.1.4. program evaluation