2011-804X 2011-804X S2011-804X2021000200128 10.17227/ppo.num26-14383 Colombia 00 12 2021 00 12 2021 26 128 143

2004 2007 1989 79-111 2009 2001 2021 , 2000 2012 38 38 129-58 2010 5 1 1 7-26 2004 1989 113-90 2011 1989 9-49