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Subject
- Land use[remove]65
- Population57
- Economic conditions33
- Maps20
- Industries19
- Administrative and political divisions14
- Mines and mineral resources14
- Ethnology10
- Population density8
- Phytogeography6
- Languages5
- Agriculture4
- Ethnic groups3
- Religion3
- Electric power distribution2
- Fuel2
- History2
- Machinery industry2
- Metal-work2
- Metallurgy2