Doyle, Robert G. (2021), Branch, Robert Maribe; Lee, Hyewon; Tseng, Sheng-Shiang (eds.), Barbara Lockee, Educational Media and Technology Yearbook, vol. 43, Cham: Springer International Publishing, pp. 67–71, doi:10.1007/978-3-030-71774-2_8, ISBN978-3-030-71773-5, retrieved 2024-04-23
Doyle, Robert G. (2021), Branch, Robert Maribe; Lee, Hyewon; Tseng, Sheng-Shiang (eds.), Barbara Lockee, Educational Media and Technology Yearbook, vol. 43, Cham: Springer International Publishing, pp. 67–71, doi:10.1007/978-3-030-71774-2_8, ISBN978-3-030-71773-5, retrieved 2024-04-23