Region
Africa
1
Africa, Central --
1
Algeria --
1
Asia
1
Asia --
1
Asia, Southeastern
2
Asia, Southeastern --
2
Australia
13
Australia -
1
Australia --
3
Austria --
1
Cambodia
1
Cambodia --
1
Central America
1
Central America --
1
Changi
1
China
8
China --
12
Developing countries
1
Egypt --
1
England
3
England --
1
Europe
1
Europe --
2
France
1
France --
2
Gabon --
1
Germany --
4
Great Britain
2
Great Britain --
3
India
1
India --
1
Indochina
1
Indochina --
1
Indonesia - Jakarta
1
Indonesia - Java
1
Indonesia --
2
Islands of Pacific
1
Jakarta
1
Jakarta (Indonesia) --
1
Japan
1
Japan --
2
Java (Indonesia) --
1
London
1
Malaya --
1
Malaysia
4
Malaysia --
1
New York --
1
Peking (China) --
1
Problem, exercises, etc
1
more ...