0123-1294 0123-1294 S0123-12942019000100009 10.5294/edu.2019.22.1.1 Colombia Colombia Colombia 00 04 2019 00 04 2019 22 1 9 22

1998 2003 4 2007 5 2002 116-26 2002 1993 8 4 4 277-92 2002 23-70 1991 2003 2009 28 2 2 60-77 2004 181-202 1991 1962 1993 43-63 2015 2011 19 2 2 207-20 2004 2005 15-39 2007 26 26 9-17 1969 Universidad del Valle 2008