Peng-Hui Maffee Wan and  Klarissa Ting Ting Chang and  Rax Suen Chun Lung,  Triadic Relationship of Icon Design for Semi-Literate Communities.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2015, vol. 101(5). 1195 - 1203
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10001409.