2307-0420 2307-0420 S2307-04202020000200032 10.18004/sopaci.2020.agosto.32 Paraguay 00 08 2020 00 08 2020 44 2 32 33

1 1934 21 517-33 2 1950 3 1 1 74-85 3 1966 58 6 6 442-6 4 2000 124 526-30 5 2007 131 965- 9 6 2010 149 315-20 7 2013 6 476