WASET
    Cristina Sá and  Carlos Gomes and  António Martins,  Tax Morale Dimensions Analysis in Portugal and Spain.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2016, vol. 120(12). 3969 - 3975
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10006232.