TK Electrical engineering. Electronics Nuclear engineering 56 QA Mathematics 52 TP Chemical technology 47 TA Engineering (General). Civil engineering (General) 40 QA75 Electronic computers. Computer science 35 TJ Mechanical engineering and machinery 34 T Technology (General) 25 Q Science (General) 17 QD Chemistry 17 Illustration 16 L Education (General) 15 HD28 Management. Industrial Management 14 Psychotherapy 13 New Zealand 12 Malaysia 11 P1-1091 Philology. Linguistics(General) 11 NA Architecture 10 NC Drawing Design Illustration 10 QC Physics 10 H Social Sciences (General) 9 TH Building construction 9 HD28-70 Management. Industrial Management 8 Psychotherapist and patient 8 Narrative 7 Unspecified 7 Entrepreneurship 6 Graphic novel 6 Identity 6 LB Theory and practice of education 6 Psychology 6