1º anuário IDC do sector das TIC : o directório independente das empresas do sector das TIC / ed. IDC Portugal
MVNO : the new deal / Carole Manero, Gontran Filet
Doing business in 2005 [documento electrónico] : removing obstacles to growth / The World Bank
Doing business in 2006 [documento electrónico] : creating jobs / The World Bank