1. Adams, J. E., & Copland, M. A. (2005). When learning counts: Rethinking licenses for school leaders. Center on Reinventing Public Education.
2. Alsbury, T. L., & Hackmann, D. G. (2006). Learning from experience: Initial findings of a mentoring/ induction program for novice principals and superintendents. Planning and Changing, 37, 169-189.
3. Anderson, E., & Reynolds, A. L. (2015). The state of state policies for principal preparation program approval and candidate licensure. Journal of Research on Leadership Education, 10(3), 193-221. https://doi.org/10.1177/1942775115614292
4. Anderson, L. M., & Turnbull, B. J. (2019). Sustaining a principal pipeline. Policy Studies Associates. https://www.wallacefoundation.org/knowledge-center/Documents/Sustaining-a-Principal- Pipeline.pdf
5. Augustine, C. H., Gonzalez, G., Ikemoto Schuyler, G., Russell, J., Zellman, G. L., Constant, L., Armstrong, J., & Dembosky, J. W. (2009). Improving school leadership: The promise of cohesive leadership systems. RAND Corporation.