Huguet, Ángel; Lapresta, Cecilio; Madariaga, José M. (2008). "A Study on Language Attitudes Towards Regional and Foreign Languages by School Children in Aragon, Spain". International Journal of Multilingualism. 5 (4): 275–293. doi:10.1080/14790710802152412. S2CID144326159.
Ambrosoli, Carlos (30 August 2011). "¿Cuánto le va a costar la vuelta al cole?"(TV news report (video)) (in Spanish). Canary Islands, Spain: Antena 3 Canarias. Archived from the original on 21 December 2021. Retrieved 28 July 2012.
Huguet, Ángel; Lapresta, Cecilio; Madariaga, José M. (2008). "A Study on Language Attitudes Towards Regional and Foreign Languages by School Children in Aragon, Spain". International Journal of Multilingualism. 5 (4): 275–293. doi:10.1080/14790710802152412. S2CID144326159.
Ambrosoli, Carlos (30 August 2011). "¿Cuánto le va a costar la vuelta al cole?"(TV news report (video)) (in Spanish). Canary Islands, Spain: Antena 3 Canarias. Archived from the original on 21 December 2021. Retrieved 28 July 2012.