Classification
158 - Applied psychology
2
170 - Ethics
330 - Economics
650 - Management & auxiliary services
2
658 - General management
000 - Computer science, information & general works
1
174 - Occupational ethics
1
300 - Social sciences
1
338 - Production
1
380 - Commerce, communications & transportation
1
384 - Communications; telecommunication
1
800 - Literature & rhetoric
1