1. Apter David, 1971, Choice and politics allocations: A developmental theory, Yale University Press, USA.
2. Braudel Fernand, 1974, History and the Social Sciences, Alianza Editorial, Spain.
3. De souse S. Boaventura.
4. Information statutes of the Integral Reform of Media High Education in Mexico.
5. OECD: http://oecd.org/edu/mexico.