García Amián, Josué, and Beatríz Macías Gómez-Estern. “A Preliminary Study on National Identity: Comparing the Piagetian and Vygotskian Perspectives”. Apuntes de Psicología, vol. 19, no. 3, Nov. 2001, pp. 471-88, https://doi.org/10.55414/9q4wn192.