SUBJECT
Economic aspects
Agriculture
40
Rice
16
Mathematical models
13
Social aspects
12
Economic conditions
11
Education
10
Agricultural credit
6
Irrigation
6
Agriculture and state
5
Farmers
5
Fisheries
5
Households
5
Human capital
5
Management
5
Power resources
5
City planning
4
Costs
4
Cropping systems
4
Econometric models
4
Fishers
4
Food consumption
4
Government policy
4
Irrigation farming
4
Roads
4
Agricultural innovations
3
Agricultural production
3
Evaluation
3
Farm management
3
Income distribution
3
Mineral industries
3
Nutrition
3
Refuse and refuse disposal
3
Varieties
3
Agricultural education
2
Agricultural extension work
2
Agricultural industries
2
Agricultural machinery
2
Birth control
2
Children
2
Coastal zone management
2
Commercial policy
2
Community development
2
Consumption (Economics)
2
Corruption
2
Economic development projects
2
Economic policy
2
Education of children
2
Education, Higher
2
Electric utilities
2
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