1. Abdal-Haqq, I. (1995). Making time for teacher professional development (Digest 95-4). Washington, DC: ERIC Clearinghouse on Teaching and Teacher Education.
2. Adler, J. & Jaworski, B. (2009). Public writing in the field of mathematics teacher education. In R. Even & D. Loewenberg Ball (Eds.), The professional education and development of teachers of mathematics (pp. 249–254). New York: Springer.
3. Ball, D. L. (1996). Teacher learning and the mathematics reforms: What do we think we know and what do we need to learn? Phi Delta Kappan, 77, 500–508.
4. Ball, D. L., & Cohen, D. K. (1999). Developing practice, developing practitioners: towards a practice-based theory of professional education. In L. Darling-Hammond & G. Sykes (Eds.), Teaching as the learning profession: Handbook of policy and practice (pp. 3–32). San Francisco: Jossey-Bass.
5. Berkowitz, S. (1996). Using qualitative and mixed method approaches. In R. Reviere, S. Berkowitz, C. C. Carter, & C. Graves-Ferguson (Eds.), Needs assessment: a creative and practical guide for social scientists (pp. 53–70). Washington, DC: Taylor & Francis.