Social aspects Aspectos sociales 26 History 23 Education 14 Social conditions 14 Political violence 9 Economic aspects 8 mehr ... Historia 8 Political aspects 8 Violence 8 Education, Higher 7 Peace-building 7 City planning 6 War victims 6 Aims and objectives 5 Economic development 5 Medio social 5 Motion pictures 5 Music 5 Climatic changes 4 Educational sociology 4 History and criticism 4 Indians of South America 4 Insurgency 4 Journalism 4 Social life and customs 4 Sociology, Urban 4 Urbanismo 4 Aspectos económicos 3 Communication 3 weniger ...