Hospitality industry. Hotels, clubs, restaurants, etc. Food service 12 Malaysia 7 Building operation and housekeeping 5 Contractors 3 Customer services. Customer relations 3 The house. Including arrangement, care, servants 3 Travel and state. Tourism 3 Consumer behavior. Consumers' preferences. Consumer research. Including consumer profiling 2 Consumer satisfaction 2 Education and training of teachers and administrators 2 Food service 2 Industrial productivity 2 Management of the construction site. Superintendence of building construction 2 Marketing 2 Nigeria 2 Online social networks 2 Organizational effectiveness. Performance measurement 2 Performance standards 2 Personnel management. Employment management 2 School administration and organization 2 Study and teaching. Research 2 TJ Mechanical engineering and machinery 2 Travel and the state. Tourism 2 Administration of estates 1 Aged. Gerontology (Social aspects). Retirement 1 Analysis 1 Analytical methods used in the solution of physical problems 1 Application software 1 Architectural drawing and design 1 Architectural engineering. Structural engineering of buildings 1