HD28 Management. Industrial Management 45 TA Engineering (General). Civil engineering (General) 39 TK Electrical engineering. Electronics Nuclear engineering 33 QA75 Electronic computers. Computer science 20 TP Chemical technology 18 QA76 Computer software 16 HD Industries. Land use. Labor 10 QA Mathematics 10 HD1394-1394.5 Real estate management 9 G70.212-70.215 Geographic information system 6 HE Transportation and Communications 6 T Technology (General) 6 TH Building construction 6 TJ Mechanical engineering and machinery 6 HD61 Risk Management 4 HF Commerce 4 Unspecified 4 HF5549.5.M63 Employee motivation 3 NA Architecture 3 TD Environmental technology. Sanitary engineering 3 G154.9-155.8 Travel and state. Tourism 2 H Social Sciences (General) 2 HD30.213 Management information systems. Decision support systems 2 K Law (General) 2 L Education (General) 2 NA9000-9284 City planning 2 Q Science (General) 2 QE Geology 2 TC Hydraulic engineering. Ocean engineering 2 TH434-437 Quantity surveying 2