Clayton Christensen Institute (Ed.). (2019). Blended Learning Universe. Retrieved May 5, 2019, from Blended Learning Universe website: https://www.blendedlearning.org/basics/
Horn, M. B., Christensen, C. M., & Staker, H. (2014). Blended: Using disruptive innovation to improve schools. San Francisco, CA: Jossey-Bass.
Tennessee Department of Education. (2018, April). 2016-17 Blended Learning Pilot Report Retrieved from Tennessee Department of Education database.