1. Affine, T. A. (2012). The zone of proximal development in early childhood education (Thesis). Laurea University of Applied Sciences.
2. Basit, T. (2003). Manual or electronic? The role of coding in qualitative data analysis. Educational Research, 45(2), 143-154. https://doi.org/10.1080/0013188032000133548
3. Baxter, P., & Jack, S. (2008). Qualitative case study methodology: Study design and implementation for novice researchers. The Qualitative Report, 13(4), 544-559.
4. Borowske, K. (2005). Curiosity and motivation-to-learn [Paper presentation]. ACRL Twelfth National Conference, Minneapolis, Minnesota, USA, April 7-10, 2005.
5. Bransford, J. D., Brown, A. L., & Cocking, R. R. (2000). How people learn (Vol. 11). National Academy Press.