Classification
005 - Computer programming, programs & data
15
000 - Computer science, information & general works
10
500 - Natural sciences & mathematics
8
004 - Data processing & computer science
6
331 - Labor economics
6
384 - Communications; telecommunication
3
620 - Engineering & allied operations
2
300 - Social sciences
1
332 - Financial economics
1
374 - Adult education
1
658 - General management
1