2664-0902 2664-0902 S2664-09022021000200145 10.33996/revistaalfa.v5i14.105 Ecuador Ecuador Ecuador 00 08 2021 00 08 2021 5 14 145 152

1 ACCU WEATHER 2019 2 2019 3 2018 4 2015 5 2009 6 YARA 2021