WASET
    Mae C. Pavilario,  Contextual Variables Affecting Frustration Level in Reading: An Integral Inquiry .   journal   = {International Journal of Educational and Pedagogical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    May 2018, vol. 137(5). 640 - 646
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/10009075.