0040-2915 0040-2915 S0040-29152025000200189 10.53287/wsts5841zx45f Ecuador Ecuador Ecuador Ecuador 00 11 2025 00 11 2025 57 189 202

2022 179 179 17-48 1994 2007 2000 201-46 2007 13 2 2 2004 2 2004 1989 2