Classification
000 - Computer science, information & general works
17
658 - General management
17
005 - Computer programming, programs & data
11
330 - Economics
7
331 - Labor economics
6
500 - Natural sciences & mathematics
6
384 - Communications; telecommunication
5
620 - Engineering & allied operations
4
338 - Production
3
381 - Commerce
3
004 - Data processing & computer science
2
380 - Commerce, communications & transportation
1
670 - Manufacturing
1