Barrera, David (24 July 2014). "El defensa Marc Vales llega a Zaragoza" [Defender Marc Vales arrives at Zaragoza] (in Spanish). La Segunda B. Retrieved 15 February 2016.
Lambán, Patricia; Hungría, Natalia (20 January 2015). "Los 20 chuts de Marc Vales" [Marc Vales' 20 kicks] (in Spanish). Vavel. Retrieved 30 March 2021.