WASET
    Ahmed Amin Mousa and  Tamer M. Ismail and  M. Abd El Salam,  A Robotic Cube to Preschool Children for Acquiring the Mathematical and Colours Concepts.   journal   = {International Journal of Educational and Pedagogical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    May 2017, vol. 127(7). 1809 - 1812
    [viewed 16 April 2024]. Available from: https://publications.waset.org/pdf/10007463.