"", Blog d'Andrés Chiappe - Objetos de Aprendizaje, URL last consultat el on 2007-09-10. Font original:Chiappe, A., Segovia, Y., & Rincon, H. Y. (2007). Toward an instructional design model based on learning objects. Educational Technology Research and Development, 55, 671-681.
ieee.org
ltsc.ieee.org
Learning Technology Standards Committee.IEEE Standard for Learning Object Metadata. IEEE Standard 1484.12.1, Institute of Electrical and Electronics Engineers, New York, 2002. (draft) URL last consultat el on 2007-04(anglès)
reusability.org
Wiley D, "Connecting learning objects to instructional design theory: A definition, a metaphor, and a taxonomy". The Instructional Use of Learning Objects: Online Version. 2000. http://reusability.org/read/chapters/wiley.docArxivat 2022-05-23 a Wayback Machine., accedit en 2007-03. (en anglès)
rlo-cetl.ac.uk
"FAQsArxivat 2008-04-13 a Wayback Machine.", CETL Reusable Learning Objects, URL last consultat el on 2006-07-04.(en anglès)
Wiley D, "Connecting learning objects to instructional design theory: A definition, a metaphor, and a taxonomy". The Instructional Use of Learning Objects: Online Version. 2000. http://reusability.org/read/chapters/wiley.docArxivat 2022-05-23 a Wayback Machine., accedit en 2007-03. (en anglès)
"FAQsArxivat 2008-04-13 a Wayback Machine.", CETL Reusable Learning Objects, URL last consultat el on 2006-07-04.(en anglès)