2007-8196 2007-8196 S2007-81962021000100046 10.36790/epistemus.v15i30.163 Mexico Mexico Mexico 00 06 2021 00 06 2021 15 30 46 52

[1] 2019 [2] 2019 13 1 1 103-21 [3] 2018 [4] Servicetonic 2021 [5] 2019 1 1 1 19-22 [6] 2018