2477-9199 2477-9199 S2477-91992025000100002 10.26807/cav.v10i19.643 Ecuador 00 11 2025 00 11 2025 19 16 23

2006 68 68 161-98 2018 1 1 70-82 2012 143-62 1974 188 34-7 2007 2009 United States Environmental Protection Agency (EPA) 1972 The Dick Cavet Show 2018 UNESCO 1967