Sustainable development 34 Environmental aspects 8 Economic policy 6 Economic conditions 5 Economic development 5 Environmental policy 4 Social conditions 4 Thesis 4 Government policy 3 Human ecology 3 Management 3 Natural resources 3 Conservation of natural resources 2 Dissertations Academic 2 Dissertations, Academic 2 Economic aspects 2 Intellectual life 2 International cooperation 2 International economic relations 2 Social policy 2 Sustainable development Vietnam 2 Agriculture Economic aspects Asia, Southeastern 1 Business enterprises 1 Cities and towns 1 Climatic changes 1 Coastal zone management 1 Conservation of national resources 1 Democracy Developing countries 1 Demographic transition Asia, Southeastern 1 Developing countries 1