QA75 Electronic computers. Computer science 191 Q Science (General) 46 QA Mathematics 13 QA76 Computer software 12 H Social Sciences (General) 9 HD28 Management. Industrial Management 8 LB Theory and practice of education 5 BP Islam. Bahaism. Theosophy, etc 4 GE Environmental Sciences 4 L Education (General) 4 HF5549.5.M63 Employee motivation 3 LB1603 Secondary Education. High schools 3 TH Building construction 3 TK Electrical engineering. Electronics Nuclear engineering 3 HD Industries. Land use. Labor 2 HT101-395 Sociology, Urban 2 LB2300 Higher Education 2 LC Special aspects of education 2 QD Chemistry 2 TA Engineering (General). Civil engineering (General) 2 Z Bibliography. Library Science. Information Resources 2 HD61 Risk Management 1 HE Transportation and Communications 1 HG Finance 1 LB1501 Primary Education 1 PE English 1 QC Physics 1 QH301 Biology 1 QR Microbiology 1 RC0254 Neoplasms. Tumors. Oncology (including Cancer) 1