Classification
153 - Mental processes & intelligence
330 - Economics
41
658 - General management
34
650 - Management & auxiliary services
29
158 - Applied psychology
12
338 - Production
11
300 - Social sciences
10
302 - Social interaction
9
331 - Labor economics
5
381 - Commerce
4
150 - Psychology
3
384 - Communications; telecommunication
3
500 - Natural sciences & mathematics
3
001 - Knowledge
2
380 - Commerce, communications & transportation
2
670 - Manufacturing
2
000 - Computer science, information & general works
1
303 - Social processes
1
332 - Financial economics
1
745 - Decorative arts
1