Environmental pollution 4 Enviromental management 3 Malaysia 3 Travel and state. Tourism 3 Analytical chemistry 2 Environmental conditions. Environmental quality. Environmental indicators. Environmental degradation 2 Environmental effects of industries and plants 2 Environmental policy and economic development. Sustainable development. Environmental management 2 Environmental protection 2 Environmental reporting 2 Geographic information systems 2 Municipal refuse. Solid wastes 2 TJ Mechanical engineering and machinery 2 Travel and the state. Tourism 2 Agriculture 1 Analysis 1 Architecture, Domestic 1 Buildings: Construction with reference to use.Including public buildings, dwellings 1 Business communication. Including business report writing, business correspondence 1 City planning. Regional planning 1 Cooking 1 Cooking processes 1 Digital mapping 1 Dormitories. Residence halls. Student housing 1 Economic development. Development economics. Economic growth 1 Economics as a science. Relation to other subjects 1 Ecotourism 1 Educational evaluation 1 Energy conservation 1 Entrepreneurship. Risk and uncertainty 1