Classification
152 - Perception, movement, emotions & drives
300 - Social sciences
330 - Economics
7
658 - General management
7
302 - Social interaction
6
500 - Natural sciences & mathematics
5
670 - Manufacturing
5
650 - Management & auxiliary services
2
331 - Labor economics
1
380 - Commerce, communications & transportation
1
381 - Commerce
1
384 - Communications; telecommunication
1