WASET
    Goh Yung Hong and  Mona Masood,  Effects of Gamification on Lower Secondary School Students’ Motivation and Engagement.   journal   = {International Journal of Educational and Pedagogical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    November 2014, vol. 96(12). 3765 - 3772
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/9999788.