1134-928X 1134-928X S1134-928X2022000200008 Perú 00 00 2022 00 00 2022 33 2 104 104 1 2020 31 2 2 76-80 2 2018 28 1 1 28-43 3 2018 29 97 97 44-54 4 2019 39 2 2 34-9 5 2014 29 4 4 901-6