Ahmed Amin Mousa and  M. Abd El-Salam,  Employing QR Code as an Effective Educational Tool for Quick Access to Sources of Kindergarten Concepts.   journal   = {International Journal of Educational and Pedagogical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    May 2016, vol. 115(7). 2367 - 2370
    [viewed 08 May 2024]. Available from: https://publications.waset.org/pdf/10004953.