Merke
- LAP Lambert Academic Publishing 22
- Callisto Reference 5
- Springer International Publishing AG 4
- Books on Demand 3
- Diplomica Verlag 3
- Independently Published 3
- LIGHTNING SOURCE UK LTD 3
- Springer Verlag, Singapore 3
- Apple Academic Press Inc. 2
- Bachelor + Master Publishing 2
- In Tech 2
- IntechOpen 2
- Kogan Page Ltd 2
- Larsen and Keller Education 2
- Noor Publishing 2
- Syrawood Publishing House 2
- Anchor Academic Publishing 1
- De Gruyter 1
- Elsevier Science Publishing Co Inc 1
- Gabler Verlag 1
- Outlook Verlag 1
- River Publishers 1
- Scholars' Press 1
- Taylor & Francis Inc 1
- Ulysses Press 1
- VDM Verlag 1
- Verlag Unser Wissen 1
- iUniverse 1