WASET
    Hong-Ren Chen and  Fang-Yu Yeh,  Instruction Resource Recommendation Services for Elementary Schools in Taiwan.   journal   = {International Journal of Educational and Pedagogical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    April 2008, vol. 16(4). 266 - 269
    [viewed 05 May 2024]. Available from: https://publications.waset.org/pdf/13157.