The effect of information channel on information source selection: students' information search / Hee Andy Lee, Rob Law, Chris Luk
Preferences regarding external information sources: a conjoint analysis of visitors to Sardinia, Italy / Dogan Gursoy, Giacomo Del Chiappa and Yi Zhang
An empirical investigation of the influence of cost information on willingness to pay for public aerobics classes / Ronald E. McCarville
Guia da União Europeia : fontes de informação sobre a União Europeia / Representação da Comissão Europeia em Portugal