Chen, L., Yoshimatsu, N., Goda, Y., Okubo, F., Taniguchi, Y., Oi, M. ., Konomi, S., Shimada, A. ., Ogata, H. . and Yamada, M. (2019) “Direction of collaborative problem solving-based STEM learning by learning analytics approach”, Research and Practice in Technology Enhanced Learning, 14. doi: 10.58459/rptel.2019.14%p.