2227-1899 2227-1899 S2227-18992021000300118 Cuba 00 09 2021 00 09 2021 15 3 118 135

2017 2016 36 907-16 2019 2019 2020 2008 2017 JAN 2017 2017 2019 495-507 2011 2019 2013 2014 2018 2009 2017 Iso/iec 20000 2010 COBIT 2017