SUBJECT
Science
Technology
19
Social aspects
18
Philosophy
10
Methodology
9
Economics
8
Social sciences
8
Technological innovations
8
Research
6
Economic aspects
5
Economic development
5
Sociology
5
History
4
Study and teaching (Secondary)
4
Economic policy
3
Population education
3
Study and teaching
3
Women in science
3
Ecology
2
Economists
2
Experiments
2
Feminism
2
Politics and government
2
Poverty
2
Sustainable development
2
Technical assistance
2
Adult education
1
Agriculture
1
Appropriate technology
1
Asia
1
Basic needs
1
Bibliographic citations
1
Bibliometrics
1
Biography
1
Business forecasting
1
Congresses
1
Costs
1
Council for Mutual Economic Assistance
1
Culture
1
Curricula
1
Decision-making (Ethics)
1
Democracy
1
Developing countries
1
Dialectic
1
Economic conditions
1
Education
1
Education, Secondary
1
Educational technology
1
Encyclopedias
1
Engineering
1
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