Genre
- Congresses 22 canlyniadau
- Cross-cultural studies 10 canlyniadau
- Case studies 9 canlyniadau
- Comic books, strips, etc 4 canlyniadau
- Handbooks, manuals, etc 2 canlyniadau
- Platforms 2 canlyniadau
- Dictionaries 1 canlyniadau
- Encyclopedias 1 canlyniadau
- Forecasts 1 canlyniadau
- Juvenile literature 1 canlyniadau
- Periodicals 1 canlyniadau
- Statistics 1 canlyniadau