www.taxathand.com/article/10831/Mexico/2018/Federal-Revenue-Law-2019-approved-by-Senate
www.haynesboone.com/Alerts/mexicos-federal-revenue-law-2019
www.taxathand.com/article/10793/Mexico/2018/Economic-package-2019-presented-
Update:
www.taxathand.com/article/11327/Mexico/2019/Proposal-released-to-allow-general-tax-offsetting
home.kpmg/xx/en/home/insights/2019/01/tnf-mexico-tax-offset-rules-for-2019.html