Management 185 Data processing 118 Accounting 78 History 70 Finance 68 Mathematics 57 Marketing 50 Mathematical models 49 Strategic planning 48 Design and construction 45 Statistical methods 45 Signal processing 44 Personnel management 40 Management information systems 38 Addresses, essays, lectures 37 Materials 37 Digital techniques 36 Case studies 34 International business enterprises 34 Methodology 34 Criticism and interpretation 33 Automatic control 32 Building 31 Managerial accounting 31 Organizational behavior 31 Social aspects 29 Business enterprises 28 Corporations 28 System analysis 28 Engineering 27