TP Chemical technology 142 TJ Mechanical engineering and machinery 134 TA Engineering (General). Civil engineering (General) 75 TK Electrical engineering. Electronics Nuclear engineering 59 QA75 Electronic computers. Computer science 41 T Technology (General) 39 QD Chemistry 24 Design 22 TS Manufactures 21 Q Science (General) 19 HD28 Management. Industrial Management 16 TH Building construction 16 Malaysia 14 QA76 Computer software 13 L Education (General) 12 New Zealand 12 Machine design and drawing 10 Marketing 10 QH Natural history 10 H Social Sciences (General) 9 HD Industries. Land use. Labor 9 NA Architecture 9 Product design 9 Sustainability 9 TH1-9745 Building construction 9 Co-design 8 QA Mathematics 8 Unspecified 7 Action research 6 Fashion 6