Open Science Research Excellence
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). 639 - 645[viewed 21 August 2019]. Available from: http://waset.org/publications/10009075.