San Martín García, J. E., and F. Perles Novas. “Effects of Tourism on the Attitude towards the Superiority of Social and Cultural Values of someone’s Own Nationality”. Escritos De Psicología - Psychological Writings, vol. 1, no. 2, Oct. 1998, pp. 27-34, doi:10.24310/espsiescpsi.vi2.13430.