González-Arias, M., Martínez-Molina, A., Galdames , S., Urzúa, A. (2018) Psychometric Properties of the 20-Item Toronto Alexithymia Scale in the Chilean Population. Frontiers in Psychology, 9, 963. https://doi.org/10.3389/fpsyg.2018.00963 The TAS-20 Spanish version is in Table 1.
Fernández-Jiménez, E., Pérez-San-Gregoria, A., Taylor, G.J., Bagby, R.M., Ayearst, L.E., Izquierdo, G. (2013). Psychometric properties of a revised Spanish 20-Item Toronto Alexithymia Scale adaptation in multiple sclerosis patients. International Journal of Clinical and Health Psychology, 13, 226-234.