1794-8932 1794-8932 S1794-89322018000100022 10.18634/sophiaj.14v.1i.519 Colombia 00 06 2018 00 06 2018 14 1 22 30

2009 2011 12 106 106 1-4 2012 2012 2005 2011 2014 2012 2001 2012 2011 2013 2012 2010 2012