Publisher
- University College London28
- Routledge27
- CRC Press6
- IOPC4
- Learning Matters2
- Lexington Books2
- Policy Press2
- Springer2
- Unbound Digital2
- Cambridge Scholars Publishing1
- Emerald Publishing1
- HQ1
- Manchester University Press1
- Palgrave Macmillan1
- Palgrave Pivot1
- Routledge, Taylor and Francis Group1
- Rowman & Littlefield Publishers1
- SAGE Reference1
- Ubiquity Press1
- Verso1