Richard Gunther; Jose Ramon Montero; Jose Ignacio Wert (2000). "The media and politics in Spain". In Richard Gunther; Anthony Mughan (eds.). Democracy and the Media: A Comparative Perspective. Cambridge University Press. ISBN978-0-521-77743-8. Retrieved 27 November 2014.
Francisco J. Pérez‐Latre; Alfonso Sánchez-Tabernero (2003). "Leadership, an essential requirement for effecting change in media companies: An analysis of the Spanish market". International Journal on Media Management. 5 (3): 199–208. doi:10.1080/14241270309390035. S2CID168023365.
Francisco J. Pérez‐Latre; Alfonso Sánchez-Tabernero (2003). "Leadership, an essential requirement for effecting change in media companies: An analysis of the Spanish market". International Journal on Media Management. 5 (3): 199–208. doi:10.1080/14241270309390035. S2CID168023365.
theguardian.com
Tremlett, Giles (4 October 2010). "El País saved as debts rise and sales fall". The Guardian. Retrieved 28 June 2017. ... the country's most powerful media group, which owns the left-leaning El País newspaper ...