Presentación
- Authors
- ortiz, María Elena; Padilla, Jaime
- Format
- Article
- Status
- publishedVersion
- Description
- Publication Year
- 2012
- Language
- Topic
- Repository
- Repositorio Universidad Politécnica Salesiana
- Get full text
- http://dspace.ups.edu.ec/handle/123456789/8302
- Rights
- openAccess
- License