Geographic Subject
Developing countries
74
India
57
Indonesia
26
Russia (Federation)
23
Africa
16
Thailand
15
Asia
10
Pakistan
10
Malaysia
9
Nepal
9
Soviet Union
9
Bangladesh
8
Haiti
5
Haïti
5
China
4
Japan
4
Latin America
4
Mexico
4
Russian Far East
4
Colombia
3
Europe, Eastern
3
Nusa Tenggara Timur (Indonesia)
3
Pays en voie de développement
3
Siberia (Russia)
3
Southeast Asia
3
Sri Lanka
3
Turkey
3
United States
3
Algeria
2
Argentina
2
Asia, Southeastern
2
Botswana
2
Chiang Mai (Province)
2
Communist countries
2
Europe
2
France
2
Germany
2
Great Britain
2
Hong Kong
2
Kenya
2
Korea (South)
2
Mekong River Region
2
Middle East
2
Philippines
2
Siberia
2
South Africa
2
South Asia
2
Sweden
2
Yemen (Republic)
2
Yugoslavia
2
more ...