Gaya APA
Business Portofolio management. (2001).
Jakarta:
Erlangga.
Gaya Chicago
Business Portofolio management.
.
Jakarta:
Erlangga,
2001.
Text.
Gaya MLA
Business Portofolio management.
.
Jakarta:
Erlangga,
2001.
Text.
Gaya Turabian
Business Portofolio management.
Jakarta:
Erlangga,
2001.
Print.