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Economics 11 Economic conditions 7 History 7 Management 6 Mathematics 6 Social sciences 6 Agriculture 5 Engineering 5 Psychology 5 Research 5 Biotechnology 4 Business 4 Civil engineering 4 Computer science 4 Law 4 Physical education and training 4 Social conditions 4 Social life and customs 4 Study and teaching 4 Sustainable development 4 Tourism 4 Architecture 3 Chemistry 3 Communication 3 Culture 3 Economic aspects 3 Economic policy 3 English language 3 Environmental aspects 3 History and criticism 3