WASET
    Yolanda Ramírez and  Ángel Tejada and  Agustín Baidez,  The Relevance of Intellectual Capital: An Analysis of Spanish Universities .   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2014, vol. 89(5). 1445 - 1453
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/9998269.