2215-2644 2215-2644 S2215-26442021000200566 10.15517/revedu.v45i1.42861 Colombia 00 12 2021 00 12 2021 45 2 566 576

1976 1987 1999 13-28 1997 99 99 2006 1972 2011 2010 1932 1966 73 73 111-2 1991 Red de Formación de Castilla y León 2019 1960