• https://repositorio.iep.org.pe/entities/publication/fe493660-0d79-4487-8def-8078b5d4b1e6
• https://repositorio.iep.org.pe/items/fea0e84e-4653-4421-a160-3ac8402e691b
• https://repositorio.iep.org.pe/entities/publication/feb7d891-ef49-4fc7-9b3a-7fc21be4efb7
• https://repositorio.iep.org.pe/items/febb03ce-bf7c-49ab-a3ac-b9e844bcd06f