Universal access [documento electrónico] : how mobile can bring communications to all / GSM Association
Glossário brasileiro de direito das telecomunicações [documento electrónico] / org. Márcio Iorio Aranha
Contact centers in Portugal [documento electrónico] : generating growth in developed contact centers markets / ed. Datamonitor
Assessment of benchmarking within government organizations [documento electrónico] / Mark Howard and Bill Kilmartin