Classification
303 - Social processes
338 - Production
330 - Economics
5
658 - General management
5
500 - Natural sciences & mathematics
4
670 - Manufacturing
3
006 - Special computer methods
2
300 - Social sciences
2
302 - Social interaction
2
331 - Labor economics
2
381 - Commerce
2
384 - Communications; telecommunication
1
621 - Applied physics
1