Gaya APA
O'Brien, J., A. (1999).
Management Information System : Managing Information Technology in the E-Business Enterprise (ed. 5).
USA:
MC Graw Hill.
Gaya MLA
O'Brien, J., A..
Management Information System : Managing Information Technology in the E-Business Enterprise.
ed. 5
USA:
MC Graw Hill,
1999.
Text.