1012-2966 1012-2966 S1012-29662024000200139 10.47993/gmb.v47i2.835 Bolivia Bolivia 00 00 2024 00 00 2024 47 2 139 142

1 2020 73 4 4 251-6 2 2020 33 71-4 3 2006 40 363-7 4 2020 4 251-6 5 2011 35 9 9 6 2017 51 5 5 402-6