סוגה
Amateurs' manuals
15
Analysis
1
Case studies
10
Charts, diagrams, etc
1
Classification
1
Computer network resources
60
Congresses
1
Design and construction
2
Electronic books
708
Formulae
4
Handbooks, manuals, etc
74
Internet resources
317
Internet videos
1,053
Observations
1
Outlines, syllabi, etc
25
Popular works
1
Problems, exercises, etc
10
Programming
1
Short films
927
Standards
2
Study guides
9
Tables
6
Terminology
2
Textbooks
5
methods
2
research
1