0379-3982 0379-3982 S0379-39822020000100178 10.18845/tm.v33i1.3849 Mexico Mexico 00 03 2020 00 03 2020 33 1 178 192

(1) 2008 (2) 2015 (3) 2011 9 60-76 (4) 2004 (5) INEGI 2010 (6) 2013 (7) 1998 (8) 1996 VI 144-62 (9) 2002 (10) 2010 129-37 (11) 1996 VI 39-66 (12) 1963 (13) 2003 (14) 1998 273-09