Costs. Industrial costs 4 H Social Sciences (General) 4 Library Science. Information Science 4 Research 4 Consumer behavior. Consumers' preferences. Consumer research. Including consumer profiling 3 Consumer satisfaction 3 Cost effectiveness 3 Electronic commerce 3 Malaysia 3 Online social networks 3 TJ Mechanical engineering and machinery 3 Travel and the state. Tourism 3 Blended learning. Computer assisted instruction. Programmed instruction 2 Electronic information resources 2 Fraud. Swindling. Confidence games 2 Groups and organizations 2 Hospitality industry. Hotels, clubs, restaurants, etc. Food service 2 Information services. Information centers 2 Marketing 2 Methodology 2 NA Architecture 2 Purchasing. Selling. Sales personnel. Sales executives 2 Service industries 2 Social psychology 2 University and college. Academic libraries 2 Academic libraries 1 Accounting. Bookkeeping 1 Agricultural industries 1 Application software 1 Architectural drawing and design 1