1
Argitaratua 2003
Full text available from ABI/INFORM Global: 01/01/2003 to 08/31/2005
Baliabide elektronikoa Aldizkaria
3
Argitaratua 1999
Full text available from Accounting & Tax Database: 08/01/2006 to present
Baliabide elektronikoa Aldizkaria
5
Argitaratua 2002
Full text available from ABI/INFORM Global: 04/01/2000 to 12/31/2002
Baliabide elektronikoa Aldizkaria