Dávila-Castillo, M.R., Santander-Moreno, J.J. and Chugá-Quemac, R.E. (2025) “Crisis of the Ecuadorian tax system and the challenges to the principle of sufficiency in tax collection”., Revista UGC, 4(1), pp. 225–232. Available at: https://revistacientifica.ugc.mx/index.php/rugc/article/view/299 (Accessed: 31 October 2026).