2414-8938 2414-8938 S2414-89382018000200159 10.30545/academo.2018.jul-dic.8 Venezuela Venezuela 00 12 2018 00 12 2018 5 2 159 168

1971 2008 4 4 119-45 2011 1927 1998 40 3 3 40-54 1995 2008 2005