WASET
    Wernhuar Tarng and  Wen-Shin Tsai and  Yu-Si Lin and  Chen-Kai Shiu,  Instructional Design Using the Virtual Ecological Pond for Science Education in Elementary Schools.   journal   = {International Journal of Educational and Pedagogical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    January 2009, vol. 25(1). 14 - 25
    [viewed 08 May 2024]. Available from: https://publications.waset.org/pdf/11047.