www.garrigues.com/sites/default/files/documents/20190912_comentario_mexico.pdf
www.taxathand.com/article/12202/Mexico/2019/Budget-proposals-for-2020-include-comprehensive-tax-reform-measures
mnetax.com/mexico-2020-tax-reform-big-changes-proposed-for-foreign-companies-doing-business-in-mexico-35871
Update:
www.taxathand.com/article/12384/Mexico/2019/Revised-tax-reform-proposals-would-benefit-private-equity-structures
turanzas.com.mx/NvoDesign/pdfs/2019/ActualizacionTributaria3-1-2019.pdf
Update:
www.taxathand.com/article/12522/Mexico/2019/Final-2020-tax-reform-package-approved-by-Senate
s-s.mx/site/prensa/publicaciones/actualidades-legales/10767/actualidad-legal-reforma-fiscal-para-2021
globalcompliancenews.com/mexico-covid-19-a-dive-into-2021-mexican-tax-reform-09122020/#page=1