Classification
658 - General management
15
620 - Engineering & allied operations
13
330 - Economics
6
500 - Natural sciences & mathematics
6
670 - Manufacturing
5
005 - Computer programming, programs & data
4
006 - Special computer methods
3
338 - Production
3
001 - Knowledge
2
153 - Mental processes & intelligence
2
303 - Social processes
2
510 - Mathematics
2
004 - Data processing & computer science
1
331 - Labor economics
1
332 - Financial economics
1
384 - Communications; telecommunication
1
515 - Analysis
1
600 - Technology
1
621 - Applied physics
1
628 - Sanitary & municipal engineering
1