21
Foilsithe 1970
Full text available from PRISMA Database with HAPI Index: 01/01/2010 to 03/31/2017
Leictreonach Sraithchlár
22
Foilsithe 1980
Full text available from ABI/INFORM Global: 01/01/2013 to present
Leictreonach Sraithchlár