Subfield
- Strategy and Management54
- Waste Management and Disposal53
- Demography50
- Applied Mathematics48
- General Economics, Econometrics and Finance48
- Management, Monitoring, Policy and Law43
- Pollution43
- Health42
- Sociology and Political Science42
- Communication40
- Finance38
- Water Science and Technology37
- Plant Science34
- Social Psychology34
- Urban Studies34
- Forestry33
- General Social Sciences33
- Library and Information Sciences33
- Virology33
- Geography, Planning and Development31