Gaya APA
David J. Bland, Alex aoasterwalder. ().
Testing Business Ideas .
Jakarta:
Elex Media Komputindo.
Gaya Chicago
David J. Bland, Alex aoasterwalder.
Testing Business Ideas.
Jakarta:
Elex Media Komputindo,
.
Text.
Gaya MLA
David J. Bland, Alex aoasterwalder.
Testing Business Ideas.
Jakarta:
Elex Media Komputindo,
.
Text.
Gaya Turabian
David J. Bland, Alex aoasterwalder.
Testing Business Ideas.
Jakarta:
Elex Media Komputindo,
.
Print.