1. | EN 14012 [documento electrónico] : postal services: quality of service: complaints handling principles / European Commitee for StandardizationData Publicação: 2008 Tema: Normas | ||
2. | CEN/TS 15511 [documento electrónico] : postal services: quality of service: information available on postal services / European Committee for StandardizationData Publicação: 2008 Tema: Normas | ||
3. | CEN/TR 15735 [documento electrónico] : postal services: quality of service: distance to access points / European Committee for StandardizationData Publicação: 2008 Tema: Normas |