1
Argitaratua 1990
Full text available from Criminal Justice Database: 11/01/1997 to 07/31/2000
Government Document Baliabide elektronikoa Aldizkako argitalpena
11
Full text available from Accounting & Tax Database: 03/01/1993 to 03/31/1993
Government Document Baliabide elektronikoa Aldizkako argitalpena
15
Argitaratua 2002
Full text available from Research Library: 10/01/1997 to 01/31/2002
Government Document Baliabide elektronikoa Aldizkako argitalpena
19
Argitaratua 1985
Available in Education Source.
Government Document Baliabide elektronikoa Aldizkako argitalpena
20
Argitaratua 2000
Available in Fuente Académica Plus.
Government Document Baliabide elektronikoa Aldizkako argitalpena