Classification
153 - Mental processes & intelligence
158 - Applied psychology
330 - Economics
15
658 - General management
12
650 - Management & auxiliary services
11
302 - Social interaction
3
338 - Production
3
500 - Natural sciences & mathematics
3
670 - Manufacturing
3
150 - Psychology
2
300 - Social sciences
2
384 - Communications; telecommunication
2
155 - Differential & developmental psychology
1
204 - Religious experience, life & practice
1
331 - Labor economics
1