Yilmaz, K. (2008). Constructivism: Its theoretical underpinnings, variations, and implications for classroom instruction. Educational HORIZONS, Spring. (Eng-gí)
John Field, Lifelong Learning and the New Educational Order (Trentham Books, 2006) ISBN1-85856-346-1(Eng-gí)
Charles D. Hayes, The Rapture of Maturity: A Legacy of Lifelong Learning (2004) ISBN0-9621979-4-7(Eng-gí)
Charles D. Hayes, Beyond the American Dream: Lifelong Learning and the Search for Meaning in a Postmodern World (1998) ISBN0-9621979-2-0(Eng-gí)
Pastore G., Un'altra chance. Il futuro progettato tra formazione e flessibilità, in Mario Aldo Toscano, Homo instabilis. Sociologia della precarietà, Grandevetro/Jaca Book, Milano 2007 ISBN978-88-16-40804-3(Eng-gí)