Han, C. and Huang, J. 2022. Effect of “Internet+” 5G Information Technology on Blended Teaching: A Test Based on Counterfactual Method. International Journal of Emerging Technologies in Learning (iJET). 17, 23 (Dec. 2022), pp. 192–207. DOI:https://doi.org/10.3991/ijet.v17i23.36025.