Classification
650 - Management & auxiliary services
658 - General management
330 - Economics
9
158 - Applied psychology
7
331 - Labor economics
6
300 - Social sciences
5
302 - Social interaction
5
338 - Production
3
150 - Psychology
2
152 - Perception, movement, emotions & drives
1
153 - Mental processes & intelligence
1
380 - Commerce, communications & transportation
1
384 - Communications; telecommunication
1
500 - Natural sciences & mathematics
1