Classification
302 - Social interaction
330 - Economics
658 - General management
11
300 - Social sciences
9
500 - Natural sciences & mathematics
8
670 - Manufacturing
8
338 - Production
6
332 - Financial economics
4
331 - Labor economics
2
381 - Commerce
2
384 - Communications; telecommunication
2
005 - Computer programming, programs & data
1
006 - Special computer methods
1
158 - Applied psychology
1
303 - Social processes
1
368 - Insurance
1
380 - Commerce, communications & transportation
1
395 - Etiquette (Manners)
1