WASET
    Wang Lin and  Li Zhiqiang ,  Analysis of Cooperative Learning Behavior Based on the Data of Students' Movement.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    August 2018, vol. 141(9). 196 - 201
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10009556.