WASET
    Enrique Barra and  Aldo Gordillo and  Juan Quemada,  Virtual Science Hub: An Open Source Platform to Enrich Science Teaching.   journal   = {International Journal of Educational and Pedagogical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    February 2014, vol. 87(3). 741 - 746
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/9997771.