TJ Mechanical engineering and machinery 316 TK Electrical engineering. Electronics Nuclear engineering 262 TA Engineering (General). Civil engineering (General) 149 QA75 Electronic computers. Computer science 114 TP Chemical technology 102 T Technology (General) 66 Mechanics applied to machinery. Dynamics 53 QA Mathematics 51 Q Science (General) 36 HD28 Management. Industrial Management 29 QC Physics 20 Malaysia 18 New Zealand 18 QD Chemistry 16 NA Architecture 15 HD28-70 Management. Industrial Management 14 QA76 Computer software 14 TL Motor vehicles. Aeronautics. Astronautics 14 Unspecified 14 L Education (General) 13 Social groups. Group dynamics 12 G70.212-70.215 Geographic information system 11 H Social Sciences (General) 11 QH Natural history 10 TA1-2040 Engineering (General). Civil engineering (General) 10 VM Naval architecture. Shipbuilding. Marine engineering 10 BP Islam. Bahaism. Theosophy, etc 9 LB2300 Higher Education 9 Psychotherapy 9 QH301 Biology 9