1992-8238 1992-8238 S1992-82382019000100021 Colombia Cuba 00 06 2019 00 06 2019 68

2008 2003 2013 2015 2015 CITMA 2016 2012 2013 5 192 1976 1993 2009 1973 2008 Ministerio de Educación 2016 1998 2003 2007