1
Full text available from Accounting & Tax Database: 10/01/1992 to 07/31/2001
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
2
Full text available from ABI/INFORM Global: 12/01/1987 to 12/31/2012
Full text available from Accounting & Tax Database: 12/01/1987 to 12/31/2012
Full text available from Career & Technical Education Database: 12/01/1987 to 12/31/2012
Ηλεκτρονική πηγή Επιστημονικό περιοδικό