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Subject (Genre)
- Periodicals85
- Congresses59
- Electronic books40
- Handbooks, manuals, etc26
- Internet videos24
- Software20
- Educational films16
- Instructional films14
- Case studies13
- Nonfiction films11
- Study guides11
- Electronic book6
- Statistics6
- Audiobooks5
- Bibliography5
- Periodical5
- Charts, diagrams, etc4
- Conference papers and proceedings4
- Internet resources4
- Classification3