HD28 Management. Industrial Management TA Engineering (General). Civil engineering (General) 23 QA75 Electronic computers. Computer science 19 QA76 Computer software 16 TH Building construction 12 H Social Sciences (General) 8 HF Commerce 6 HD Industries. Land use. Labor 5 K Law (General) 5 HG Finance 4 TJ Mechanical engineering and machinery 4 HE Transportation and Communications 3 T Technology (General) 3 TD Environmental technology. Sanitary engineering 3 BP Islam. Bahaism. Theosophy, etc 2 GE Environmental Sciences 2 HB615-715 Entrepreneurship. Risk and uncertainty. Property 2 HT Communities. Classes. Races 2 LB2300 Higher Education 2 TE Highway engineering. Roads and pavements 2 BF Psychology 1 Computer Science and Information System (Formerly known) 1 GV Recreation Leisure 1 HB Economic Theory 1 HD30.2 Knowledge management 1 HD61 Risk Management 1 HF5601 Accounting 1 HM Sociology 1 JS Local government Municipal government 1 NA Architecture 1