Fátima Gonçalves and  Joaquim Brigas and  Jorge Gonçalves,  Communication Design in Newspapers: A Comparative Study of Graphic Resources in Portuguese and Spanish Publications.   journal   = {International Journal of Humanities and Social Sciences}, [online]. World Academy of Science, Engineering and Technology.
    February 2018, vol. 135(3). 379 - 382
    [viewed 02 July 2020]. Available from: https://publications.waset.org/pdf/10008707.