2007-8064 2007-8064 S2007-80642021000100005 10.22201/enesl.20078064e.2021.23.77100 00 12 2021 00 12 2021 9 23

2008 23 6 6 656-72 1986 3-23 1992 2020 2020 2008 9461 2014 2020 45 4 4 2011 26 4 4 315-71 1992 4 295-323 1992 2011 12 3 3 1-14 2006 159-206 2015 1990 23 314-33 2001 41-52 2007 1985 91 3 3 481-510 1986 4-18 2003 28 1 1 1-20 2006 2012 86 4 4 693-717 2002 26 4 4 33-52 1982 2020 1980 1987 20 1 1 39-56 1988 2002 2001 12 77-85 2020 34 4 4 922-51 1992 7 1 1 1-8 1975 1993 16 1 1 38-61 2017 2008 23-5 1998 1988 27 181-94 2006 2020 2001 381-401 1999 22 2 2 463-77 2015 40 3 3 279-98 2009 18 5 5 419-30 2015 30 4 4 603-15 2019 11 1993 8 59-73 1991 16 2 2 71-91 2011 29 2 2 105-18 2018 United Nations Educational, Scientific and Cultural Organization 2003 2008 4 4 4 365-79 2016 134-45 2014 192-216 2017 91 4 4 767-99 2020 14 1 1 3-19 2005 93-112 2011 35 1 1 165-84 2020 1985 30 482-96