Lin, H., Xie, S., Xiao, Z., Deng, X., Yue, H., & Cai, K. (2019). Adaptive Recommender System for an Intelligent Classroom Teaching Model. International Journal of Emerging Technologies in Learning (iJET), 14(05), pp. 51–63. https://doi.org/10.3991/ijet.v14i05.10251