Social sciences 903 Research 213 History 211 Power (Social sciences) 207 Politics and government 181 Study and teaching 156 Methodology 143 Elite (Social sciences) 132 Congresses 125 Social conditions 123 Periodicals 115 Economics 111 Bibliography 102 Economic conditions 99 Sociology 94 Mathematical models 84 Political science 78 Statistical methods 76 Study and teaching (Primary) 65 Statistics 63 Study and teaching (Secondary) 61 Pluralism (Social sciences) 56 Statics and dynamics (Social sciences) 51 Social aspects 49 Economic policy 47 Education 45 Case studies 43 Economic development 37 Philosophy 37 Cities and towns 36