Gaya APA
Napitupulu, B.
(1975).
Joint Venture di Indonesia
(
cet. 1)
.
Jakarta_:
Erlangga Publishing.
Gaya MLA
Napitupulu, B..
"Joint Venture di Indonesia".
cet. 1
Jakarta_:
Erlangga Publishing,
1975.
Buku Teks.