6
Published 1984
Full text available from ABI/INFORM Trade & Industry: 01/01/2002 to 08/31/2004
Electronic Journal
7
Published 2004
Full text available from ABI/INFORM Trade & Industry: 09/01/2004 to present
Electronic Journal
9
Published 2005
Available in Education Source.
Electronic Journal
10
Published 2010
Digitalia Hispánica
Electronic eBook
11
Available in Fuente Académica Plus.
Electronic Journal