1992-8238
1992-8238
S1992-82382019000100023
Ecuador
Cuba
00
06
2019
00
06
2019
68
[
2013
]
[
2016
1
2
2
28-39
]
[
Fundación Don Bosco
2012
]
[
GIETAES
2017
1
65-9
]
[
2006
]
[
2003
]
[
2015
]
[
2006
]
[
2013
]
[
Universidad Politécnica Salesiana
2014
1
5-7
]
[
Universidad Politécnica Salesiana
2016
]