Genre
Study guides
795
Electronic books
390
Examinations, questions, etc
27
Handbooks, manuals, etc
16
Problems, exercises, etc
5
Examinations
4
Directories
3
Formulae
3
Textbooks
3
Case studies
2
Congresses
2
Directory
2
Periodical
2
Periodicals
2
Périodiques
2
Reference works
2
Répertoires
2
Study guide
2
Laboratory manuals
1