1. Improving Learning Object Reuse Through OOD: A Theory of Learning Objects.
2. Benkler, Y. (2006). The Wealth of Networks: How Social production Transforms Markets and Freedom. Yale University Press. Retrieved Jan. 3, 2017, from http://www.benkler.org/benkler_wealth_of_networks.pdf
3. Berners-Lee, T., Hendler, J., & Lassila, O. (2001, May 17). The Semantic Web. Scientific American. Retrieved Jan. 23, 2017, from https://pdfs.semanticscholar.org/566c/1c6bd366b4c9e07fc37eb372771690d5ba31.pdf
4. Bratina, T. A., Hayes, D., & Blumsack, S. L. (2002, Nov. – Dec.) Preparing teachers to use learning objects. The Technology Source Archives at the U. of N. Carolina. Retrieved Jan. 4, 2017, from http://technologysource.org/article/preparing_teachers_to_use_learning_objects/
5. Statistical profiles of highly-rated learning objects