Geographic Subject
Indonesia
66
India
63
Japan
49
Pennsylvania
23
Michigan
17
Sweden
14
New Zealand
13
Germany
12
Malaysia
11
California
10
Taiwan
10
Bangladesh
9
Hungary
8
Yugoslavia
8
Hawaii
7
Norway
7
Russia (Federation)
7
Soviet Union
7
Himachal Pradesh
6
Minnesota
6
United States
6
Austria
5
France
5
Philippines
5
Scandinavia
5
Belgium
4
China
4
Denmark
4
Germany (West)
4
Israel
4
Karnataka
4
Malaya
4
Mississippi
4
Netherlands
4
Pakistan
4
Sri Lanka
4
Switzerland
4
Tropics
4
Washington (State)
4
Alabama
3
Assam
3
Australia
3
Bengkulu
3
Bihar
3
Brazil
3
Finland
3
Great Britain
3
Haryana
3
Kalimantan Timur
3
Nepal
3
more ...