Classification
153 - Mental processes & intelligence
300 - Social sciences
330 - Economics
40
658 - General management
40
302 - Social interaction
36
338 - Production
28
650 - Management & auxiliary services
28
500 - Natural sciences & mathematics
14
670 - Manufacturing
13
158 - Applied psychology
8
331 - Labor economics
8
000 - Computer science, information & general works
3
001 - Knowledge
1
381 - Commerce
1
384 - Communications; telecommunication
1
629 - Other branches of engineering
1