Management 185 Data processing 118 Accounting 78 History 70 Finance 68 Mathematics 56 Marketing 50 Mathematical models 49 Strategic planning 47 Design and construction 44 Signal processing 44 Statistical methods 43 Personnel management 40 Management information systems 38 Materials 37 Addresses, essays, lectures 36 Case studies 34 Digital techniques 34 International business enterprises 34 Methodology 34 Criticism and interpretation 33 Automatic control 32 Managerial accounting 31 Organizational behavior 31 Building 30 Social aspects 29 Business enterprises 28 Corporations 28 System analysis 28 Engineering 27