1870-879X 1870-879X S1870-879X2019000100128 Venezuela 00 06 2019 00 06 2019 13 25 128 151

2012 2010 1997 2004 2008 1991 V 1992 I 1991 XXIII 2006 1966 2009 2009 2006 2002 2010 1994 12 12 227-36 2010 2012 1999 1996 1998