Small and medium-sized business. History 24 HC Economic History and Conditions 14 History 10 Malaysia 9 Special subjects (Technique, history and collections) 9 HN Social history and conditions. Social problems. Social reform 8 NA Architecture 7 Management. Industrial Management 6 Malay language. General works. History 5 Small business. Medium-sized business 5 Environmental policy and economic development. Sustainable development. Environmental management 4 Parks and public reservations. Including theory, management, history 4 QH Natural history - Biology 4 By region or country 3 HB Economic Theory. Demography 3 History of discoveries, explorations, and travel 3 History of economics. History of economic theory, Including special economic schools 3 Natural History Including nature conservation, geographical distribution 3 Perak 3 Planning. Business planning. Strategic planning 3 Study and teaching. Research 3 Theory of design 3 Travel and state. Tourism 3 Biology 2 Consumers. Consumer demand. Consumption 2 Economics 2 Entrepreneurship. Risk and uncertainty 2 Fertilization 2 Heritage tourism. Cultural tourism 2 History of sociology. History of sociological theory 2