SUBJECT
Population
3
Natural resources
2
Population policy
2
Cost and standard of living
1
Economic history
1
Education
1
Farmers
1
Geography, Economic
1
History
1
Land reform
1
Land use
1
Life expectancy
1
Quality of life
1
Rice
1
Social conditions
1
Social life and customs
1
Sustainable development
1
Technology
1
Women in development
1