WASET
    Guolong Zhong and  Venkatesh Chennam Vijay and  Ilias Oraifige,  A Game-Based Product Modelling Environment for Non-Engineer.   journal   = {International Journal of Educational and Pedagogical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    March 2021, vol. 172(4). 312 - 319
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10011936.