Classification
650 - Management & auxiliary services
658 - General management
40
330 - Economics
25
331 - Labor economics
14
158 - Applied psychology
12
300 - Social sciences
7
381 - Commerce
6
005 - Computer programming, programs & data
5
500 - Natural sciences & mathematics
4
153 - Mental processes & intelligence
3
302 - Social interaction
3
338 - Production
3
620 - Engineering & allied operations
3
380 - Commerce, communications & transportation
2
384 - Communications; telecommunication
2
510 - Mathematics
1
670 - Manufacturing
1