Classification
158 - Applied psychology
330 - Economics
14
650 - Management & auxiliary services
9
658 - General management
8
153 - Mental processes & intelligence
6
338 - Production
5
302 - Social interaction
3
150 - Psychology
2
300 - Social sciences
2
332 - Financial economics
2
500 - Natural sciences & mathematics
2
000 - Computer science, information & general works
1
170 - Ethics
1
381 - Commerce
1
384 - Communications; telecommunication
1
646 - Sewing, clothing & personal living
1