1990-8644 1990-8644 S1990-86442023000300297 Cuba 00 06 2023 00 06 2023 19 92 297 304

2012 36 76 76 159-81 2021 2018 16 3 3 455-69 2020 2 3 3 167-74 2018 10 1 1 216-22 2018 10 19 19 201-17 2020 12 5 5 2021 19 3 3 2016 12 54 54 56-62 2018 56 56 Ministerio de Educación Superior 2018 2017 53 59-71 2021 9 1 1 2018