1659-4266 1659-4266 S1659-42662018000200296 10.22458/urj.v10i2.2161 Venezuela Venezuela 00 12 2018 00 12 2018 10 2 296 303

2014 3793 2 2 231-46 2015 69 3 3 477-88 1969 38 1-2 1-2 5-6 2016 32 1 1 12-31 1957 24 33-45 2015 3914 5 5 591-6 2009 7 191-214