Social Sciences 183 Community development 175 History 157 Communism 154 Communities 105 Tribal community 105 Sociology 82 Social conditions 79 Urban communities-- Sociology 74 Economics 73 India 71 Tribal communities-- Sociology 67 Politics and government 62 Ecology 55 Social aspects 55 Community 54 Rural development 54 Education 52 Women 51 Political Science 49 Social sciences 47 Biotic communities 43 Tribal communities 43 Economic development 35 Human rights 35 Communist parties 33 Philosophy 33 Social change 33 Research 31 Communist party 30