Gaya APA
Freedman, R. (2000).
The It Consultant A Commonsense Framework For Managing The Client Relationship .
amerika serikat:
Jossey-Bass Pfeiffer.
Gaya MLA
Freedman, Rick.
"The It Consultant A Commonsense Framework For Managing The Client Relationship".
amerika serikat:
Jossey-Bass Pfeiffer,
2000.
Buku.