Geography
United States
31 results
Texas
27 results
Nigeria
23 results
Developing countries
22 results
Tanzania
20 results
Egypt
14 results
Kenya
13 results
Mexico
13 results
Ghana
10 results
Libya
10 results
Brazil
8 results
Colombia
8 results
Ethiopia
8 results
Uganda
8 results
Côte d'Ivoire
7 results
Philippines
7 results
Zambia
7 results
Bolivia
6 results
Africa
5 results
Africa, West
5 results
Chile
5 results
China
5 results
Dominican Republic
5 results
Sudan
5 results
Guatemala
4 results
Indonesia
4 results
Japan
4 results
Malaysia
4 results
Peru
4 results
Senegal
4 results
Virginia
4 results
Argentina
3 results
Botswana
3 results
Burkina Faso
3 results
Cameroon
3 results
Caribbean Area
3 results
Cuba
3 results
France
3 results
Germany
3 results
Kano State
3 results
Latin America
3 results
Niger
3 results
Poland
3 results
Sierra Leone
3 results
Soviet Union
3 results
Spain
3 results
Taiwan
3 results
Texas Panhandle
3 results
Thailand
3 results
Tunisia
3 results
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