Gaya APA
Napitupulu, B.. (1975).
Joint ventures di Indonesia .
Jakarta ::
Erlangga,.
Gaya Chicago
Napitupulu, B..
Joint ventures di Indonesia.
Jakarta ::
Erlangga,,
1975.
Text.
Gaya MLA
Napitupulu, B..
Joint ventures di Indonesia.
Jakarta ::
Erlangga,,
1975.
Text.
Gaya Turabian
Napitupulu, B..
Joint ventures di Indonesia.
Jakarta ::
Erlangga,,
1975.
Print.