1. Amann-Gainotti, M. (1998). Jean Piaget e la Psicoanalisi. Angeli.
2. Archives Jean Piaget. (1989). Bibliographie Piaget. Fondation des Archives Jean Piaget.
3. Barrelet, J. M., & Perret-Clermont, A. N. (Eds.). (1996). Jean Piaget et Neuchâtel, l’apprenti et le savant, Payot.
4. Beilin, H. (1992). Piaget’s new theory. In H. Beilin, & P. B. Pufall (Eds.), Piaget’s theory: Prospects and possibilities (pp. 1–17). Erlbaum Associates.
5. Bond, T., & Tryphon, A. (2009). Piaget and Method. In U. Müller, J. I. M. Carpendale, & L. Smith (Eds.), The Cambridge companion to Piaget (pp. 171–201). Cambridge University Press.