1. Ash, S. L., & Clayton, P. H. (2009). Generating, deepening, and documenting learning: The power of critical reflection for applied learning. Journal of Applied Learning in Higher Education, 1, 25–48. https://scholarworks.iupui.edu/bitstream/handle/1805/4579/ash-2009-generating.pdf
2. Astin, A. W., & Sax, L. J. (1998). How undergraduates are affected by service participation.
Journal of College Student Development, 39(3), 251–263.
https://digitalcommons.unomaha.edu/slcehighered/7
3. Astin, A. W., Vogelgesang, L. J., Ikeda, E. K., & Yee, J. A. (2000). How service learning affects students. Higher Education Research Institute, UCLA. https://digitalcommons.unomaha.edu/slcehighered/144
4. Battistoni, R. M. (1997). Service learning and democratic citizenship. Theory and Practice, 36(3), 150–156. https://digitalcommons.unomaha.edu/slceslgen/86
5. Boateng, G. O., Neilands, T. B., Frongillo, E., Melgar-Quiñonez, H. R., & Young, S. L. (2018). Best practices for developing and validating scales for health, social, and behavioral research: A primer. Frontiers in Public Health, 149(6), 1–18. https://doi.org/10.3389/fpubh.2018.00149