Genre
- Electronic books 702 canlyniadau
- Congresses 58 canlyniadau
- Case studies 12 canlyniadau
- Handbooks, manuals, etc 8 canlyniadau
- Cartoon 4 canlyniadau
- Textbooks 4 canlyniadau
- Bibliography 2 canlyniadau
- Biography 2 canlyniadau
- Catalogs 2 canlyniadau
- Cross-cultural studies 2 canlyniadau
- Environmental conditions 2 canlyniadau
- Interviews 2 canlyniadau
- Reviews 2 canlyniadau
- Rules and practice 2 canlyniadau