Classification
300 - Social sciences
17
302 - Social interaction
17
500 - Natural sciences & mathematics
658 - General management
17
330 - Economics
16
670 - Manufacturing
14
338 - Production
4
004 - Data processing & computer science
1
150 - Psychology
1
158 - Applied psychology
1
331 - Labor economics
1
362 - Social welfare problems & services
1
368 - Insurance
1
384 - Communications; telecommunication
1
650 - Management & auxiliary services
1