Ramajo, Roberto (1 October 2018). "Willian José renueva hasta 2024" [Willian José renews until 2024]. Diario AS (in Spanish). Retrieved 4 January 2024.
Lagos, Daniel (4 September 2021). "Willian José, objetivo Granada" [Willian José, objective Granada]. Diario AS (in Spanish). Retrieved 4 January 2024.
López, Ángel (26 August 2021). "Oficial: Willian José, cedido al Betis" [Official: Willian José, loaned to Betis]. Mundo Deportivo (in Spanish). Retrieved 4 January 2024.