Classification
158 - Applied psychology
330 - Economics
5
650 - Management & auxiliary services
5
338 - Production
4
153 - Mental processes & intelligence
3
658 - General management
2
800 - Literature & rhetoric
2
001 - Knowledge
1
150 - Psychology
1
170 - Ethics
1
304 - Factors affecting social behavior
1
331 - Labor economics
1
500 - Natural sciences & mathematics
1