Nur Azlina Mohamed Mokmin and  Mona Masood,  Development of Multimedia Learning Application for Mastery Learning Style: A Graduated Difficulty Strategy.   journal   = {International Journal of Educational and Pedagogical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    January 2014, vol. 96(12). 3909 - 3912
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/10000056.