WASET
    Dong-Joong Kim and  Sangho Choi and  Woong Lim,  Sfard’s Commognitive Framework as a Method of Discourse Analysis in Mathematics.   journal   = {International Journal of Cognitive and Language Sciences}, [online]. World Academy of Science, Engineering and Technology.
    September 2017, vol. 131(11). 481 - 485
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10008184.