2007-7890 2007-7890 S2007-78902021000400028 10.46377/dilemas.v8i.2612 Peru Peru Peru Peru 00 00 2021 00 00 2021 8 spe2

1. 2005 7 7-8 7-8 2. 2010 26 2 2 194-202 3. 2015 24 1 1 4-5 4. 2007 46 3 3 5. 2003 77 1 1 257-65 6. 2009 43 4 4 619-23 7. 2017