0379-3982 0379-3982 S0379-39822017000500021 10.18845/tm.v30i5.3220 Costa Rica Costa Rica Costa Rica 00 12 2017 00 12 2017 30 21 29

2011 2nd 1998 5 5 5 16-47 2006 49 i i 3-15 1996 7 2009 2010 1995 1993 2 2003 1115-8 2013 2012 2015 591 012-6 2007